1. What is myopia swimming mirror

myopia swimming moster is a type of swimming mirror, but unlike ordinary swimming moster.The myopia swimming moster is a flat lens with a brush -up lens with refractive lens, so that myopia patients are clear when swimming, and can improve the body sensation and swimming quality.If the myopia is wearing a flat mirror, it will be blurred after entering the water, which will affect the speed and efficiency of swimming, so their own safety will also be affected.

The myopia goggles on the market basically use plastic steel reinforcement treatment and polycarbonate, silicone and other types, and increase the function of waterproof mist and ultraviolet -resistant rays.

Is it necessary for myopia swimming moster?

If there is a condition of myopia itself, you need to wear a Swimming goggles to swim and fitness, so that you can wear myopia to be relatively safe and make the swimming time longer.Otherwise, without the myopia goggles, there will be blurred vision, which will also affect the effect of swimming, which is not conducive to the role of fitness.You can choose the appropriate myopia swimming goggles according to your myopia.

3. Does the myopia swimming mirror hurt your eyes?

If myopia swimming, if wearing a swimming mirror, it will not hurt the eyes.Most of the water in the swimming pool contains the ingredients of bleaching liquid. If you do not wear a swimming mirror, no matter whether it is myopia or not, swimming will cause damage to the eyes.

If it is a severe myopia, it is recommended to choose a Swimming goggles close to the number of myopia to prevent it from seeing the swimming and collide with others.At the same time, do not be too large in exercise, and exercise should not be too severe. Avoid the retina's perforated mesh and cause damage to the eyes.After swimming, it is recommended to use some antibiotic eye drops to prevent inflammation of the cornea.

1. The structure of the children's combination slide

Children's combination of sliding facilities usually includes doors, bridges, slides, roofs, roofs, stairs, platforms, columns, ladder climbing, slide, climbing, and rope nets;Components have multiple models and multiple color options; they can also be personalized and produced according to the needs of customers.Children's slide design is clever and harmonious in color, and the clever combination of various components of plastic, children's play equipment brings safe, joyful and lively feelings to children.

2. How to assemble Outdoor combination slides

1. In the first step, first measure the venue to determine the area of the combined slide to ensure that the installation location is in the design location.

2. Step 2, measure the location of the embedded parts. Note that this step is very important. If there is a deviation in the installation of the embedded parts, the combined slide cannot be successfully installed.

3. Step 3, install a combination of slide structure parts, install the slide Steel Structure column into the embedded parts, and lock the screw.

4. In the fourth step, on the basis of the completion of the Steel Structure column, the combined slider other Steel Structure components are installed.

5. In the fifth step, on the basis of the completion of the Steel Structure, the plastic outer component is installed on the Steel Structure component, and the special screw is locked.

6. Step 6, check the installation site that there is any omissions and the fixed part of the installation, clean up the scene

How to check the authenticity of Hua's fishing rod

1, Scan code query

Hua's Fishing rods and floats will stick anti -counterfeiting labels on the product.Take fishing rod as an example.You can see the complete QR code and anti -counterfeiting code when scraping the coating on the anti -counterfeiting label.When the first loses of the anti -pseudo code or scan the QR code query, the official WeChatThe "Hua's fishing Tackle Service Number" will obtain the authority of geographical location. If there is no prompt or no geographical location, it is considered a counterfeit.Confirm whether the product number and anti -counterfeit code correspond to the product number and the anti -counterfeiting code.

2Code query

WeChat search and follow the public account"Hua's fishing Tackle Service Number" Click the menu below [Anti -counterfeiting inquiry] can also scan or enter the anti -counterfeit code for query.The inquiries of the inquiries show that the interface is displayed in the same interface as the scanning query results.

True and false distallation of Hua's fishing rod

1,Trademark

Look at the trademarks printed on the body, see if it is clear, the picture is blurred, if the handwriting is rough, the pattern is blurred, and the boundary line is unclear. Most of them are inferior products.

2,work

Most of the Fishing rods are relatively fine. First of all, the appearance of the lacquer is not Smooth, and the pattern is fine and not delicate.

3, Blocked and tail

The blocking of the pole and the tail tail plug are not exquisite enough, and the rear tail pole is not uniform.

4Venture

After pulling out the pole, there is no air pressure. If some are more fine, seal well, and the wall of the Tube is uniform between each section.

5, Can't stand up to the waist

After the whole pole is pulled out, the pole can not stand up. If there is some bending in the first quarter, it is1.9Tune, fishing fish is better to lift the pole, if you bend backwards2.8You can also catch catfish or3.7fishing, fishing catfish is more practical.

6, Balance

Try the balance of Hua's Fishing rods. If the center of gravity is not tired for a long time, by the way, it will catch the loaded mineral water slightly in the pole. Try the flexibility.

7Listen to the sound

Hold the middle of the pole with one index finger and thumb, and use the finger or index finger to play the Tube wall with the other hand, and you will hear different sounds.The general rule is that the better the solidification, the better the overallness, the stronger the sound, the more crispy, and vice versa.Hua's fishing rod product Daquan & gt; & gt;

What is lacquer carving

Lacquer sculpture is a traditional Chinese arts and crafts, also known as Cong Hong. Its skills began in Han and Tang.The process process is extremely complicated.Making paint, tire making, polishing, degeneration of light, etc. The process is complicated and the use is very long. Therefore, the large lacquer carving is also extremely expensive.Paint carvings are a technique that clean the pattern on the piled plane paint tire.The Yuan and Ming dynasties were introduced into Beijing.After the hard work of lacquer carving artists, the lacquer carving skills gradually matured, and the lacquerware has become arts and crafts with Beijing characteristics.Beijing lacquer carving is well -known as Hunan Xiangxiu and Jingdezhen, Jiangxi, and is known as "the three leaders of Chinese arts and crafts."Over the years, lacquer carving has been favored by lacquer carving art lovers at home and abroad with its unique craftsmanship.

Value of lacquer carving

1. Cultural value

Tianshui carving lacquer skills occupy an important position in Chinese lacquer art. It is a typical representative of the traditional handicrafts of Han nationality in the Northwest region.

First of all, the design of Tianshui carving lacquer products is mostly a master of high -level arts and crafts masters, which is beautiful and generous.Its product aesthetic is strong, combined with carving, inlaid, and paint, with exquisite craftsmanship and exquisite design.Secondly, Tianshui carving lacquer products can not only decorate the cultural atmosphere of home life, increase the taste of life, and increase the taste of life, but also the best choice for the wall decoration of high -end halls such as hotels, hotels, to set out it or a magnificent or noble elegance for it.Or a clear and free environment; at the same time, it can be used as a gift and a collection of value preservation and appreciation, and passed down from generation to generation. She is still shining after hundreds of years.

2. Economic value

Tianshui carved lacquer products are famous at home and abroad, and carved lacquer products themselves have a lot of room for appreciation and collection value.Since the founding of the People's Republic of China, it has been a local pillar industry for a while, and has played a very important role in local economic construction.Due to the gradual development of carving lacquer production skills, the employment problems of considerable number of personnel have been solved.Secondly, in addition to meeting the domestic market needs, Tianshui carving lacquer products have been exported to 37 countries and regions, which has had a huge impact on the development of the local economic development. With the continuous development of the economy, Tianshui carving lacquer skills and product markets have great development.potential.

3. Historical value

As a traditional Chinese cultural carrier, Tianshui carving lacquer skills have played an important role in the development and continuation of Chinese lacquer arts; it has provided a lot of detailed evidence for the research of carving lacquer production skills;Essence

Paint -carving quotation

The process of carving lacquer is quite complicated. It is not one person to do it. It takes a dozen procedures to complete it. Among them, the painting process is the most time -consuming process.A real red work must be carved with a paint with a thickness of 15-25 mm.Generally speaking, one millimeter thick paint must be brushed 17 times. Each paint can only be dried indoors, not baked or sun, and can only be brushed 2-3 times a day.Therefore, the production cycle of a good lacquered artwork takes 6-8 months, or even more than 2-3 years.According to professionals, the basic materials of carved lacquer raw paint and cinnabar are also very precious.A lacquer tree produced only 10 kilograms of lacquer for 50 years, and the output of red cinnabar mixed in the paint was also very rare.

Due to this kind of reason, lacquer carving works increased daily in the market.At the Sotheby's auction in Hong Kong in 2007, a Ming Dynasty carved lacquer plate with a diameter of only 23 cm was shot 11.26 million Hong Kong dollars, setting a world record.Experts are also valued at 800,000 yuan.

Lacquer carving identification method

1. Look at the slurry:No matter how clever is the old method of a lacquer carving device, the feeling of patent leather feels different: even if the authenticity is well maintained, the air oxidation and smoke of hundreds of years will still leave a layer of pulp on the surface; and the surface; andThe tentacles made by oxalic acid are Smooth and impetuous, and you can even see the bright red paint under the magnifying glass.

2. Look at the bottom tire:Most of the pseudo -lacquer carving uses plastics such as polyester ethylene as a tire, which was impossible in ancient times.

3. Look at the money:Most lacquer carving has no money, including the "paint" of the Qing Palace Creation office.There are two categories of knowledge. Before the Ming Dynasty Xuande Nian, the bottom of the lacquer carved device was used to draw a "needle scratch" with a needle. After Xuande, he used the knife carved regular script year number and then filled in the gold.

Lacquer carving maintenance method

The lacquer carving is very sensitive to dry humidity, and it is difficult to save. It is 15-18 degrees Celsius. The humidity is most suitable for about 55%. It is too dry and easy to crack.If the environment is too dry, you can wrap the lacquerware with plastic wrap.

[Electronic hot and cold box] The characteristics and use of the knowledge hot and cold box of electronic hot and hot boxes

Hot and cold box

Different types of products are divided into different types, including plastic, foam, metal, wooden, etc. of various insulation boxes.

Hot and cold box product structure

The hot and cold box mainly uses food-grade environmentally friendly LLDPE materials. After one molding and refined by the world's most advanced-rotating mold pressure process, it is equipped with marine stainless steel locks, and the bottom is equipped with rubber anti-slip pads., Anti -ultraviolet rays, not easy to change color, Smooth surface, easy cleaning, good thermal insulation effect, not afraid of falling, can be used for life.The product is used with ice packs, and the cold effect exceeds the United States industry standards.Continuous refrigeration and thermal insulation time can reach several days.

Hot and cold boxInsulation effect

Put the ice bag in -20 C in the freezer of the freezer of the freezer for 24 hours to fully cool. According to the standard configuration, the temperature in the foam Insulation box can reach 90 hours below 8 C. It is suitable for various medium and long-distance low-temperature drug transportation.

Features of electronic hot and cold boxes

During the heat resistance: hot and cold boxes have high requirements for heat resistance and cooling resistance. They will not deform in high temperature water, and can even be disinfected with boiling water.

Durable: It must have superior impact resistance. It is not easy to crack during heavy pressure or impact. It will not leave scratches and can be used for life.

Seal: This is the first point to choose a fresh -keeping box.Although different brands of product sealing methods are different, excellent sealing is a necessary condition for long -lasting fresh food food.

Fresh preservation: The international sealing measurement standard is evaluated by transmitting humidity testing. The high -quality fresh -keeping box is 200 times lower than the humidity of similar products, which can maintain the freshness of things for longer.

Multi-functional and diversity: For life needs to design different sizes, with reused use of technology ice packs, ice packs can be kept cold and can be kept heat (the lowest ice bag can be frozen to -190 C, up to 200 C, can be arbitrarily arbitrarily, can be arbitrarily arbitrarilyCutting size)

Environmental protection: Food -grade environmentally friendly LLDPE materials, non -toxic and tasteless, anti -ultraviolet rays, not easy to change color

Electronic hot and cold box use

I. Biomedical: Alpine, hepatitis B immunoglobulin, propion globulin, vaccine, etc.;

Second, insulin: RI, Nuohe Ling series, Ganshinlin series, Nuohe Rui, Youbale, Youba Tai-25;

Third, live bacteria: Peifang, Siliankang, etc.; 4. Interferon, sodium heparin, tetanus antitoxin, growing elastin, octotide, etc.;, Cefbal, Liqitin, ammonia -deaconin, fillecin, and pyramidis;

5. Serum, enzyme preparations: hemogense, hemostasis, antivirus snake serum, etc.The above medicines or other drugs that have been stored between 2 C and 8 C can be stored and carried;

6. Other categories: It is suitable for long -term refrigeration and preservation of any items, suitable for Outdoor leisure activities such as Camping, outing, fishing, and drift; it can also be suitable for medical sampling, sampling, biological preparation low temperature transportation, blood transportation, etc.!It can also be used to save items that need to be kept during shopping!

precautions:

1. When moving the drug refrigerated box, the angle of the upper and lower, left and right tilt cannot be greater than 45 and cannot squeeze the box and door body to prevent deformation from affecting the performance of the drug refrigerated box.

2. Pay attention to the flatness and stability when placing the drug refrigerated box.

3. When placing the drug refrigeration box, avoid sunlight and stay away from the high temperature and high humidity environment to prevent the drug refrigerated box from failing or moisture rust.

4. Put the medicine refrigerated box as much as possible in a good ventilation environment. It is strictly forbidden to block the ventilation port of the machine. This will damage the machine and damage the drug due to poor ventilation.

The warm and warm box brand & gt; & gt;

precautions

1. clean the drug refrigerated box, wipe it gently with some neutral detergents with soft cloth, and then wipe it with water. Do not use dirt, gasoline, acidic or alkaline detergent, chemical cloth, banana water, acetone, oil, oil, oil, oil, oilwait.

2. The door seal is easy to accumulate, and it should be wiped out frequently.

3. When the drug refrigerated box is not used for a long time, wipe the inside of the box clean. After the inside of the box is fully dry, close the door of the drug refrigerated box.

cleaning and maintenance

1. Foods remaining inside the refrigerator are prone to cause bad odors. The refrigerator must be cleaned regularly.

2. Open the upper cover and clean and wipe it with a soft towel or sponge dipped in warm water or neutral detergent.

3. After using a detergent, clean it with water, and then dry it with a dry cloth.

4. We must often remove the dust on the top of the refrigerator to avoid affecting the aesthetic effect.

Product use

The hot and cold box is used for high and low temperature reliability tests.Components and materials of electronic and electronics, automotive motorcycles, aerospace, rubber, plastic, metal, Ship weapons, colleges and universities, scientific research units and other related products check their performance indicators under high and low temperature changes.

Refrigeration system

The refrigerator uses the French original "Taikang" fully closed compressor.

The frozen system is designed by unit or dual -type low -temperature circuit system.

The multi -wing -wing ventilator strong air supply cycle is used to avoid any dead ends, which can make the temperature distribution in the test area uniform.

Wind roads have a wind backwind design. The wind pressure and wind speeds meet the test standards, and the temperature of the door can stabilize the time quickly.

Heating, cooling, and completely independent systems can improve efficiency, reduce test costs, increase life, and reduce the failure rate.

Technical parameter

Temperature range: 0, -20 , -40 , -60 -70 ~ 100 (150 )

Temperature volatility: 0.5

The temperature uniformity: 2

Specification size model size

10L 51.5*24*25.5cm

45L 75.5*33.5*38cm

12L 41*28.5*28.5cm

18L 44.5*29.5*33cm

28L 57*37*36cm

Introduction to foam hot and cold box

The foam Insulation box is the outer packaging made of foam for preservation and fresh -keeping

Outer size: 50cm*36cm*30.5cm

Internal size: 42cm*28cm*22cm

Cover thick: 5cm

Wall thickness: 4cm

Density: 700G

Materials and characteristics

Hair -available polystyrene foam plastic is a new central policy packaging material, insulation material.It has the advantages of light gravity, impact resistance, easy to form, beautiful shape, bright color, high -efficiency energy saving, low price, extensive use.