2024-12

Astronomical Telescope eye mirror type Introduction of astronomical Telescope mirror structure diagram

1. Huachangs mirror (H)

The Dutch scientist Huachaus was designed in 1703. It is composed of two flat convex lenses. The front is a field mirror and the back is a mirror. Their convex surface is facing the end of the object mirror. The focal length of the field mirror is generally 2-3 times the mirror.It is half of their focal length.Huachangs mirror is about 25-40 degrees.In the past, the Huachangs mirror was the first choice of a small refraction mirror, but with the increase of the light power of the Telescope, the disadvantages of the obvious disadvantages of the field of view, low contrast, color difference, and ball differences. Therefore, this structure is generally generally generallyUse the eyepiece of the Microscope.

2. Romans Deng mirror (R)

The design was successful in 1783, and it was also two -sets and two groups of structures. It was composed of two flat convex lenses with the same focal length and the same focal length.The spacing is 2/3-3/4, which is the focal length of the two. The color difference is slightly large, and the field song is significantly reduced. The field of view is about 30-45 degrees. At present, it is rarely used.

3. Klena mirror (K, RKE)

It was developed on the basis of Ranzesden mirror. It appeared in 1849. The main improvement was to change the single -piece lighting mirror to the dual -glued color differential lens, which greatly improved the improvement of color difference and edge image.At 40-50 degrees, there is a comfortable pupil distance when it is low, so it is currently widely used in some low-dimensional Telescopes, but it is not well performed when it is high.In addition, the field mirror of the Kelna eye mirror is close to the focal plane, so that the dust on the field mirror is easy to images and affects observation, so pay special attention to cleaning.

A US company has further improved on the basis of Kylene mirror and developed RKE eyepiece. The edge image is better than the classic structure.

4. Abbey disorders (or) (or)

Designed by Abe, one of the founders of Germany's Zeiss Company in 1880, it is a structure of four pieces and two sets. Among them, the field mirror is a three -glue lens, and the mirror is a flat -convex lens.Like and the field of the field to the degree of difficulty, it also has a flat field of viewing and sufficient pupils at a flat field of 40-50 degrees. It has a good performance in each magnification and has been widely adopted.

5. Ailifer wide -angle mirror (ER)

The successful development in 1917 was designed for military Telescopes that needed a large field of view. It was the originator of all wide-angle mirrors. The structure was 5 pieces and three groups, and the field of view was as high as 60-75 degrees.It is very suitable for observing deep space celestial bodies. Because the edges are scattered, it is not suitable for high -power design. Its performance in low times is very good.

6. Prove mirror (PL)

Also known as symmetrical mirror.It is composed of the two sets of two sets of dual -gluing color differential lenses. Its parameter performance is equivalent to OL eyepiece, but it has a greater pupil distance and field of view. The cost is lower, and it is suitable for all the magnitudeThe eyepiece has been assigned a variety of improved types.

7. Nagler's eyepiece mirror

A high -end eyepiece designed by Americans in 1979 has an amazing field of 82 degrees, high -quality edges like quality and comfortable pupils, as well as complex structures and high prices, and weight of more than one kilogram.

1. How to do a good job of garden landscape lighting design

1. Clarify the theme of garden landscape lighting

Clarifying the "theme" is not only the top priority of garden landscape lighting design, but the primary task of any design. Before doing any lighting design, you need to start from the perspective of lighting planning to determine what kind of theme is to do.Go to integrate with the landscape to express the beauty of garden landscapes.Different theme design, with the lighting effects of different scenes, create a comfortable visual atmosphere.

2. Create a unique night environment

garden landscape lighting design, as a comprehensive design that requires basic lighting and ornamental lighting, needs to decorate its unique style on the basis of respecting the basic image of the garden landscape.Under the premise of not being lingering, use good light to combine light and landscape design more comfortable, romantic and unique.

3. Improve the playability

garden landscape lighting is not just basic lighting. Due to the large flow of people, it is necessary to pay attention to the creation of the atmosphere while ensuring safety, the immersive light and shadow experience, the blending light design, the immersive light atmosphere, and the interactive people with good people to allow tourists to allow tourists to allow tourists to allow tourists to allow tourists to allow touristsTo better integrate into the environment, improve the playability of design, and allow tourists to experience the beauty of Lights more.

4. Show the beauty of ecology and nature

Through the combination of lighting and garden architecture, plants, and tourists, the visitors and the atmosphere of the entire garden are integrated, so that people are immersed in feeling the beauty of light and shadow in garden landscapes, and creating a harmonious environment of man and nature.The most important thing is to allow tourists to enjoy the sensory feast, while not losing the atmosphere of nature.This is the essence of garden landscape lighting design. It makes people be in nature rather than coming to super modern science and technology venues, so that tourists can truly relax and comfortable.

2. Common design techniques for garden landscape lighting

1. Landscape lighting lighting of water view

Water scenery is one of the components of the garden lighting project, and it is also the key lighting design part.There are many forms of garden water views. For example, there are large lake water views with wide water surfaces, as well as Fountains, streams, cement ponds, and waterfalls.The night scene lighting design method of the water surface lighting project is mainly reflected by the water surface landscaping and the railings on the shore and the lighting of trees on the water surface.Real views and reflection in water, compare each other, set off, positive and reflect, plus the dynamic landscape effect of reflection in the water, let people enjoy it.For some waterfalls and Fountain landscapes, underwater lighting can be designed, and underwater lighting fixtures of the same or different colors can be exposed through special arrangements according to demand. The effect of lighting is magical.

2. Landscape lighting of sculpture sketches

The sculpture sketch in the garden lighting project, the iconic construct, is very ornamental, and the latter is memorable.This type of lighting design should start with the main characteristics of the sculpture, especially the key parts of the sculpture, such as: head, material, expression, color and surrounding environment.The front of the front is uniformly illuminated, which can create a lighting effect of lighting, realistic, and strong three -dimensional sense.In the selection of light sources, a narrow beam lamp should be selected, and the main direction of the vision of tourists should be avoided to prevent glare.

3. Functional lighting design of garden roads

Visitors are led to various attractions from the entrance of the garden.The road is the context of the garden, and the path is winding and winding, giving people a kind of effect on steps, and the winding path.The lighting design method should be carried out closely.

4. Landscape lighting of garden trees

Trees are one of the elements of garden landscapes. There are many varieties of garden trees, and they are full of attitudes. In addition to being able to beautify the environment and provide tourists to watch, they also have the effects of regulating and protecting the environment.lighting should be treated according to the height, size, appearance characteristics and color of the trees.

1. What are the conditions for opening a Fishing gear shop?

Nowadays, people's pursuit of life taste is getting higher and higher. Usually, fishing and leisure entertainment is also common. Especially some office workers and middle -aged and elderly people can fish for stress or self -cultivation.Seeing this market demand, many people also want to open a store to start a business, and it is naturally easy to open a store to meet everyone's needs. So what are the conditions for opening a Fishing gear shop?

Opening a store requires legitimate business qualifications. At this time, all documents must be fully prepared, including nuclear names, applying for business licenses, engraving rules, and tax registration instructions.In addition, you must also go to the bank to open an account and open it, and you must go to the taxation to report it. At this time, you will often use a copy of your ID card, a lease contract, and an application form. These are fully prepared.

2. Open the Fishing gear shop to join or buy it by yourself

1. Opening a store is the name of the franchise store. The headquarters will be distributed to you. You do nt need to go to the goods by yourself. You only need to pay a certain fee. You can pay for the decoration.It's right.Relatively easier, because the business philosophy is based on the headquarters.

2. It is more complicated to open the store by yourself. You need to go to the goods to make up. If you have a quality problem, you can find it to find the shipper. If you are a franchise store, you can find the headquarters to solve it. What is it?It s all done by yourself. Maybe you feel good as your boss, but there are a lot of troubles, and you need to do it yourself.

Both methods have their own advantages and disadvantages. What should I do if I need to connect with the actual situation and follow my own heart.

1. Tea planting conditions

1. Soil

Generally, it does not contain lime stones with a thickness of up to 1 meter, and the sandy loam with good drainage is 1%-2%of the organic matter content. The permeability, water permeability or water storage performance is good. The pH value of pH is 4.5 ~ 6.5.

2. Rain amount

The average rainfall and the annual rainfall is more than 1,500 millimeters.Insufficient and excessive impact.

3. Sunshine

Light is the primary condition for the survival of the tea tree. It should not be too strong or too weak. It has special hobbies for ultraviolet rays.

4, temperature

One is the temperature, the other is the ground temperature, the average daily temperature needs to be 10 degrees; the minimum cannot be lower than -10 degrees.The average annual temperature is eighteen degrees to 25 degrees Celsius.

5. Terrain

The main terrain conditions include altitude, slope, and slope.With the rise of the altitude, the temperature and humidity have changed significantly. In a certain height mountain area, there are abundant rainfall, large clouds, large air humidity, and strong light.In more than 1000 meters, frost damage will be available.Generally, it is better to choose a south slope.The slope should not be too large, and generally requires below 30 degrees.

2. Points of tea planting

1. Soil

If you want to plant high -quality tea, the choice of the plantation place is the foundation.Generally, the soil of the planting place should be calculated from four to 5 to 6.5, which is a sore soil.Secondly, the soil structure of the planting site should be complete, the soil layer is deep, the soil fertility must be sufficient, and the organic matter content is abundant.Finally, the rich water source, water quality and soil must not pollute, convenient irrigation, convenient transportation and water and electricity, and the soil is red or yellow soil.

2. Water

The growth of tea trees is also relatively high in water, so we need to plan drainage and irrigation systems in advance.According to the terrain of tea planting, the layout is reasonably, and the arrangements such as roads, ditch, water pipes, and faucet are carefully done.The irrigation system of the tea garden is generally sprayed, which can not only save water resources, but also spraying irrigation methods is more conducive to the growth of tea.During the growth of tea, we need to irrigate frequently, but the amount of irrigation must not be very large, and the surface soil can have a certain humidity.

3. Nutrition

In order to promote the growth and renewal of tea, we need to properly top topical pursuit.The ribbon branches that are just planted for a long time need to be applied once in the spring, and the tea trees from two to three years need to increase the amount of topdressing, which is doubled in one year. Of courseNitrogen Fertilizer.Three years later, tea trees need to be picked up four times a year, including base Fertilizer, spring Fertilizer, autumn Fertilizer, winter Fertilizer, and leaf surface Fertilizer.

4, density

The density of tea planting is also a problem that we need to pay attention to when planting.Reasonable planting density is good for the yield and quality of tea.If the density of planting is too high, it is easy to occur in various problems such as dysplasia and uneven light.Then the spacing of the density of planting is about two meters and one meter between the plants.

5. Anti -frozen

We all know that the cold resistance of tea trees is very strong and will not die in heavy snowy weather, but this disease does not mean that it is not afraid of freezing.Pay attention to the treatment of cold and insulation during the young tree, otherwise it is also easy to be frostbite, which will affect the yield and quality after the tea tree.Then when the cold wave comes, we put some insulation materials around the tea trees, such as straw, which can have a good effect of preventing cold.

6. Pruning

Pouring tea trees is a very necessary job to grow tea.The tea gardens we see are basically consistent with the tree shape of tea trees, so as long as we prunites, we can keep them consistent, and only when trimming like this can the quality of tea growing tea leaves will be better.When necessary, we need to update the trees, that is, comprehensively update the tea trees to improve the quality and yield of tea.

3. Prevention and control of tea diseases and insect pests

1. agricultural prevention and control

Choose a variety of disease -resistant insects and enrich plants

Different varieties of tea have different morphological structures and biochemical components, so different varieties of tea are very different from the resistance of different diseases and insect pests.When planting tea trees, we should select good diseases and insects according to the specific situation of the local area to reduce the harm of pests and pests to the tea trees.

Tour and clean up the tea garden

Properly trimming the tea tree can not only regulate the trees, promote the increase in picking area, but also effectively reduce the occurrence of pests and insect pests.

Reasonable fertilization and picking in batches

The fertilization of the tea garden should be determined according to the results of the meter measurement to prevent the amount of fertilization, avoiding a large amount of nitrogen fertilizer caused by the weakening of the plant resistance.In addition to applying phosphorus and Potassium fertilizer, trace elements and organic Fertilizers should also be supplemented in an appropriate amount to reduce pests and insect pests.

2. Biological control

Treaty of the enemy

The natural enemy resources in the tea garden are relatively abundant. For example, bare -eye bees can control the density of pests such as cypress, scrusted winged, and wings.The control of natural enemies to control pests should be used to ensure the biodiversity in the tea garden as much as possible and ensure the living environment of natural enemies.

Bacterial prevention and treatment of diseases and insect pests

Bacteria are used in tea diseases and insect pests.Su Yunjin Bacillus can secrete a toxin. This toxin only infects some types of pests, and has no toxic effect on natural enemy insects and humans. The bacteria agent can be used in the tea garden to effectively prevent the occurrence of lumper -winged pests.Essence

fungal prevention and treatment of diseases and insect pests

The fungal biological pesticides in the prevention and treatment of tea diseases and insect pests mainly include white stalemate and wooden mold.

After contacting the pests, the spores of the White Strike can invade their mycelium into the body of the pest. In tea applications, pests such as tea poisoning moths and tea roll moths are well preventive.

Woodwood bacteria secrete antibacterial protein and other substances to inhibit the infection of tea leaves by pathogenic bacteria. At the same time, they can also inhibit the reproduction of pathogenic bacteria through spatial and nutrient competition.

3. Physical prevention

There are two types of physical control methods commonly used in tea gardens.

Artificial killing is a killing of pests in the tea garden in accordance with the growth law and characteristics of pests.

The deduction of appliances is based on the trend of pests, and the use of physical factors such as magnetic fields, odors, temperatures, or the color of the appliance generated by the appliances to induce killing insects, thereby reducing the density of pest density.

kumquat is a plant under the genus of Ratoscopy, also known as golden dates, golden citrus, and little oranges.Originally distributed in the southeast coastal provinces, especially in Guangdong, the oldest history of planting and consumption of golden citrus is the oldest hometown of kumquats.In addition, South China and the middle and lower reaches of the Yangtze River are also widely cultivated.

kumquat is an evergreen shrub.3 meters high, generally no thorns, green branches green, there are many branches when nutritional; leaf lanceolate to oblong, 5-9 cm long, full, petiole is slightly wings; flowers small, white, aroma, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3, 1-3Blossoms, petals 5, stamens 20-25, and 5 rooms; fruit oval or ovate, 2.5-3.5 cm long, golden yellow; fruit spherical is Japanese kumquat.Appreciate the leaves, fruits, or the production of orange cakes for the production of fruits. After the potted plants, it is well managed, and the grafting method is used.A small golden orange that can settle more than 10, and the spring Festival is generally exported to Hong Kong, which is very popular with Hong Kong people.

Morphology

Short or small trees, 3 meters high, evergreen without thorns and branches.

leaf

kumquat's leaves are lanceolate to round torque, 5-9 cm long, 2-3 cm wide, full or unknown fine serrated, dark green on the surface.bright.The back of the back is green and there are scattered glands; the petiole has narrow wings, and the joints are located at the border of the blade.Single flowers or 2-5 flowers are gathered in leaf axils with short handles.

flower

kumquat's flowers are neat, white, aromatic; sepals 5; petals 5 mm, about 7 mm long, and 20-25 mm in stamens, which are combined with several bouquets to different degrees; pistils are born on the slightly rising flower plate.fruit round or ovate, golden yellow.The meat is thick and thick, Smooth, with many glands and fragrance.4 5 meat.

seed

seed oval spherical

Breeding method

Kumquats are grafted and reproduced.The rootstock is citrus, lime or sowing real seedlings. The grafting method has branches, buds, and reliance, and branches.The buds are carried out in June-September, and potted plants are commonly used by connection, which are carried out in April-July.

How to breed kumquats

1. Moderate light

kumquat -sex warm and humid climate,

Put in a sunny place when maintenance.If the light is insufficient and the environment shade, it will often cause the branches and leaves to be long, and there are fewer flowers.Because kumquats are cool in summer, or in summer, it is better to put it on the shade at this time.

It is advisable to refuse to freeze in winter.If the room temperature is too high and the plants cannot be fully dormant, the growth of the following year is weak, and it is easy to fall into the bud.

2,Cleverly

Pruning is an important technical measure to make kumquat flowers.In order to make the tree -shaped shape and many results, before the start of the sap up every year, the spring buds have been re -pruning when they have not germinated, cut off the dead branches, diseases and insect branches, dense branches, and long branches, and retaining 3 to 4 heads of age and robustness.The proportioned branches are separated, each branches only leave only 2 to 3 buds at the base, and the rest are cut off.This can germinate more than 10 full spring slightly.When the new is slightly longer to 15-20 cm, topping is made to make the plant shape plump. At this time, the speed -effective phosphorus Fertilizer is applied to promote the differentiation of flower buds.When blooming, it should be appropriately sparse to save nutrients.

After having young fruit, when the young fruit grows to about 1 cm in size, it can be carried out with 2 to 3 fruits per plant, and each branch of the weak branches keeps one fruit and makes the whole plant uniform.Cut the autumn a little in time, and do not make the second result, consistent with the size and maturity of the fruit, and increase the value of ornamental.

3. Apply full Fertilizer

Kumquats are like Fertilizer. When potted plants, 4 parts of corruption, 5 parts of sand, 5 parts of sand, and 1 cake Fertilizer are mixed with cultivation soil.When changing the basin, apply the hoof slices or rotten cake Fertilizer as the base Fertilizer on the bottom of the pot.From the beginning of the new buds to the beginning of flowering, you can apply the rotten light sauce dregs every 7 to 10 days to pour alum Fertilizer several times.

After the summer, we should apply more phosphate Fertilizer to facilitate pregnancy and results.As a result, fertilization should be suspended in the early stage. When the young fruit grows to about 1 cm, it can continue to apply liquid Fertilizer once a week until the end of September.

4. Water water

Kumquats are moist but avoid water, and the pot soil is too wet to rot.Therefore, it is better to keep the pot soil moist during the fertility.spring is dry and windy.Spray water once a day to increase the humidity of the air.Spray water 2 to 3 times a day in summer and spray water on the ground.But avoid spraying during flowering to prevent rotten flowers and affect the results.

The rainy season should be dumped in the basin in time to avoid rotten roots.When placing outdoors in summer, it is best to use bricks to pad the Flower pot to facilitate drainage.The requirements of kumquat white flowers to the young fruit period are more sensitive to moisture.At this time, the pot soil is too dry, and the stem stems and the fruits are easy to produce off the layer and fall off; excessive watering, the poor water permeability of the pot soil, and it is also easy to cause falling flowers and fruits.Therefore, at this time, it is advisable to make the pot soil keeping the semi -tadpole.

5. Treatment of insect pests

Many years of practice has proved that kumquats have not found diseases, only Huangfeng Butterfly (also known as citrus phoenix butterfly) harm.So don't think kumquats are harmful.becomeThe insect body is 30 mm long, the wings are 100 mm, yellow -green, and the back has a large black longitudinal pattern.The front wing is one day, 6 posterior wings.The egg is spherical, with a diameter of 1 mm, yellow and white.The larvae feed the new leaves, and the daytime eating and night eating can easily cause kumquat leaves to lack or glow.

The governance of this insect pest: spray 50%of the larvae to kill the pine 1000 times liquid or 80%of the dichlorvos of 1000 times liquid, capture insecticidal pupae outside the branch.

6. Disease prevention and treatment

Ulcer disease

Harmly leaves, branches slightly harmonious fruit, causing fallen leaves and falling fruit, and the back of the leaves starts with yellow stains.

The spots gradually expanded in the future, raised on both sides, rough and lignified, in the middle of the cracked, finally gray -brown, ulcer -shaped, yellow halo rings around them, severe cases caused by fallen leaves, and ulcer germs spread with the wind and rain.20 to 30 C and moist climate are the most serious.

Control measures:

(1) Reasonable fertilization.Prevent new leaves from growing too fast and enhance disease resistance.

(2) Drug prevention:

First, use 0.25 kg of copper sulfate, 0.5 kg of lime, and 50 kg of water with water spray into Bordeaux.

Second, spray with 600 times the ammonium ammonium.

Third, 600 times with antibacterial special.

Fourth, spray 800,000 units (that is, about 100 kilograms of water) spray.

anthrax

Harmly symptoms: Anthrahumin is harmful to leaves, branches, and fruits, and in severe cases, the branches are slightly dry and fruitful.The harm of the seedlings will cause the branches and leaves, and the whole plant will dry out in severe cases.This disease generally occurs at kumquat bases.

Control measures:

(1) Strengthen cultivation management, strengthen tree momentum, increase Organic fertilizer and Potassium fertilizer, do a good job of weeding of pine soil in the orange garden, and maintain moderate wet and dry.

(2) Clear, disease leaves, sick branches, etc.

(3) 5%to 800 times with 5%Domori ammonium.Or antibacterial special 600 times spray.Spray once every 10 days apart, and twice continuously.

The effect and role of kumquat

1. Observation value

kumquat fruit is golden and fragrant, and the fruit Hanging time is long.

It is excellent fruit watching flowers.It should be used as potted plants and bonsai, and its taste is sweet and sour, and it has multi -nutritional value.Warm it in the south, and its fruit trees are also planted.Potted kumquats are green in the four seasons, with lush branches and leaves.summer flowers, colorful and white, the aroma is far away.In autumn and winter, it is cooked or yellow or red, embellished in green leaves, which can be described as Bitao Gold Pills, supporting Shouyong, and high ornamental value.

2,Edible value

Kumquats are not only beautiful, but also rich in ingredients such as vitamin C and kumquats, which have a certain effect on maintaining cardiovascular function and preventing diseases such as vascular sclerosis and hypertension.As a health care product, kumquat honey crickets can be used for appetizing. Drinking kumquat juice can quench thirst, add radish juice and pear juice to cure cough.The specific edible value is as follows:

Kumin has a good effect on preventing blood vessels from rupture, reducing capillary brittleness and permeability, and slowing blood vessel sclerosis;

kumquat can produce two -way regulation of blood pressure. Hypertension, vascular sclerosis and coronary heart disease are very beneficial;

Kumquett has the effect of qi and depression, eliminating food and chemical phlegm, and has the function of sobering up and sobering;

Frequent kumquats can also enhance the body's cold resistance and prevent colds.

3. health care function

Beauty Skin care

Kumquats can prevent pigmentation, improve Skin gloss and elasticity, slow down aging, and avoid Skin relaxation and wrinkles.

appetizing Shengjin

Kumquats can be appetizing as food therapy health products. Kumquats can appetite. Drinking kumquat juice can quench thirst, add radish juice and pear juice to cure cough.kumquat medicine is sweet and warm, can relieve qi and relieve depression, and reduce phlegm.

Prevent chronic disease

Kumquats have a certain effect on maintaining cardiovascular function and preventing diseases such as vascular sclerosis and hypertension.

precautions for kumquat farming

1. Water spraying in the flowering period should be prevented from sprouting, and water is not sprayed on the open flowers. This is neither conducive to pollination, nor can it cause rotten flowers.

2. Kumquats are warm and humid and sunshine. It has been placed in the insufficient sunlight indoors for a long time. The plant is weak and affects flower bud differentiation and results.

3. kumquat like acidic soil. Potted plants in the north can be poured once a week to taste Fertilizer water, or potassium dihydrogen phosphate, or fertilizes with 200-250 times per week.There are many results.

4. Potted kumquats require proper management of water and Fertilizer.Before the spring bud germination, cut off part of last year, and the robustyone left 2 to 3 buds, and each plant was left with three pruning 1 year -old branches, which is conducive to the germination of spring shoots. When the new buds grow to 15-20 cmfull.When the branches are long, the speed -efficient phosphate Fertilizer is applied, such as calcium phosphate, long -term anti -branches and leaves, and promoting flower bud differentiation and flowering results.At the end of May, the spring shoots were blooming and fruitful. The flowering period should be appropriately sparse. After the fruit, the fruit is weak and sparsely fruit.Cut the autumn shoots in time to prevent secondary results.