[folding Mattress] What are the advantages of the type of folding Mattress?

What are the types of folding mattresses?

1. latex folding Mattress

The latex is divided into synthetic latex and natural latex. The synthetic latex is derived from oil, lack of elasticity and breathability; natural latex comes from rubber trees, soft and comfortable, good breathability, can emit a faint milk flavor, closer to nature.The oak protein in natural latex can inhibit the lurking of germs and allergies. Compared with synthetic latex, natural latex costs are high, but it is more suitable for making sleeping products.

2. Environmental cotton folding Mattress

Environmental cotton folding mattresses mainly use environmentally friendly cotton as an internal core. Environmental cotton is made from non -woven craftsmanship by polyester fiber as raw materials. Because of its environmental protection, 0 formaldehyde is swept through the software and furniture industry.The environmental cotton is made of polyester fiber, which greatly increases the breathability and service life of the Mattress. Environmental cotton folding mattresses do not breed mold, have no irritating odor, are close to the Skin, but not easy to get moisture. They are making mattresses.And the excellent material of Outdoor cushion.

3, 3D folding Mattress

The 3D folding Mattress uses 3D materials as the inner tendon in the Mattress. The 3D material adopts the "X-90 " structure and double-sided network holes to present a six-sided breathable hollow three-dimensional structure.Due to oppression, the blood circulation is not Smooth, and the deep sleep is effectively extended.The biggest feature of 3D materials is breathability. The air can be freely circulated inside the Mattress to maintain the dryness of the Mattress as a whole.

4. Sponge folding Mattress

The sponge Mattress uses high -density sponge as the inner core of the Mattress. Because of its foaming process, the sponge is made with a slight irritating taste.It has high softness, high elasticity, folding mattresses made of sponge, soft style, suitable for young consumer groups!

5. Palm folding Mattress

Palm refers to the collective name of palm materials such as mountain palm and coconut palm. coconut palm is the product of the fruit shell fiber processing and treatment of coconut trees. Because coconut is high -sugar -content fruit, coconut palm contains a large amount of fruit sugar.The mattresses that are forming are often moldy and breed bacteria due to unqualified descending treatment of coconut palm mattresses. coconut palm is naturally plant fiber, high hygroscopic, and mattresses are prone to moisture.The Yamanaka -Chirakawa area, which is a subtropical, has almost no sugar and durable, but the output of mountain brown mattresses requires dozens of mountain palm trees to produce a one -year output of mountain brown mattresses. ThereforeChen Ben is high, slowly produced, and high -produced latex, highly comfortable latex, environmentally friendly cotton, etc.

What are the advantages of folding Mattress

1. The foldable mattresses are relatively easy. For some people who often travel often, put the Mattress in a business trip, so as not to seal the dust at home every day.Take it directly and use it, so you don't need to clean up again.It is the same for some people who do not want to use the Mattress in summer. It is not too hindered to fold it under the bed or in the cabinet.

2. You can buy it at home at home. When a guest comes to the house, if you do not want the guest to sleep in a narrow space like the folding bed, you can directly spread the folding Mattress directly on the floor floor of the room as a tatami rice.It is also very convenient, the space is spacious, and the guests sleep naturally.All in all, the function of folding mattresses is diverse. As long as you can make full use of it, this is indeed a must -have artifact at home.

How to buy high -quality folding mattresses

color: Pay attention to whether the color is your favorite. It is recommended to choose light -colored (warm colors) in the Mattress color of the bedroom. Warm color is more likely to make people fall asleep.

Appearance: See if the corners of the Mattress are clear, whether the thickness is uniform, the surface is flat, and the line marks are well -proportioned.

elasticity: There is no best, only the most appropriate one, choose a folding Mattress that suits you to fall asleep when you fall asleep, because people are different because of people.Children are suitable to use a hard environmental cotton folding Mattress. Young people can choose a latex mattress with high comfort. The middle -aged and elderly people are suitable for the specialty of the environmentally friendly cotton folding Mattress due to their specialty.3D folding Mattress, suitable for environmentally friendly cotton folding mattresses with high density and good warmth in winter.

Safety: Environmental cotton and 3D materials are completely tasteless. Pure natural latex will emit a faint milk flavor. The sponge will have a slight irritating smell. The most ease of formaldehyde is coconut palm (caused by a large amount of chemical adhesives)Intersection

[Elbers' effects] What are the elbows how to wear elbows and elbows how to use elbows

1. The function of elbows

The role of elbows is to provide stress to reduce swelling; the second is to restrict activities so that the injured parts can be restored.At the same time, it is best to try not to hinder the normal operation function of the hand, so if it is not necessary, most elbows are not restrained.

Elbers and knee pads are designed to prevent the elbow and knees from being injured and wearing cushions or hard shells.In order to reduce the weight of the equipment, the designer briefly, beautiful, convenient, and practical the elbow and knee pad design.

Friends who like to play tennis, Badminton, and table tennis play in a ball, especially when playing against the handball, the elbow will hurt, even if we wear elbows, the expert will tell us this commonly known as "tennis elbow"EssenceAnd this tennis elbow is mainly at the moment of hitting the ball. The wrist joints are not braking, the wrist is not locked, and the extensor of the forearm is excessively pulled, causing damage at the attached point. After the elbow joint is protected, the wrist joint is not protected.There is still an excessive excessive flexion when hitting the ball, so that the damage to the elbow joint can be worse.

So when playing tennis, if you feel the elbow pain, you'd better wear the Wrist care while wearing the elbow.And when you choose the elbow, you must choose no elasticity. If the elasticity is too good, it will not be a protective effect.And don't be too loose when you wear it too tight, too tight will affect blood circulation, too pine can not play a protective effect.

In addition to these three big goals and three small balls, young friends like some extreme sports, and they must wear professional Sports guards to effectively prevent being injured.In the end, it is reminded that the protective gear only plays a certain protective role in exercise, so in addition to wearing some protective gear during the sports competition, everyone should try to master regular technical motion and strictly abide by the rules of the competition.In addition, once you are injured in the exercise competition, you must first stop continuing exercise. If you have the conditions, use ice cubes to apply ice to relieve pain, and then you must go to the Hospital to find a professional doctor for pressure bandaging.

2. basketball elbow protection

Everyone thinks that gloves and elbow -nursing are designed to protect hands and elbows. In order to meet this need as much as possible, the producer produces a variety of elbow protection. There are many types and styles of elbows.When the ball player is training or game for a long time, when he feels that the ball is very difficult to grasp, he often hopes to use elbows to increase the power of the hand.

basketball has become a fashion movement, followed by the spread of various popular elements on the basketball court.From the once -tight jersey to the ever -changing protective gear on players, the NBA players are leading the fashion trend of the basketball industry.

If it is a fan of the god of basketball Jordan, I believe I have absolutely wearing elbows and playing.At that time, the elbows on Jordan's left arm became a unified equipment for basketball fans.Wearing the elbows as if the whole person becomes confident, and every action will deliberately imitate Jordan.However, it has been rarely seen in the event of the elbow to play. The equipment for replacing the elbow protection is to protect the arm protective with a larger area.

Third, how to wear elbows

Elbow Putting Map

1. What is the tone of Luya pole

Luya pole is often marked with tunability like the hand pole. The so -called tone refers to the position ratio of the bending point when the Luya pole is stressed.Tune (ultra -slow tone), S tone (slow adjustment), MR tone (medium slow tone), R tone (medium tone), RF tone (medium fast adjustment), F tone (fast adjustment), FF tone (ultra -speed adjustment), XF tone (extremely fast), etc.

2. What is the hardness of Luya pole

The Luya pole is often marked with hardness as the hand pole. The so -called hardness refers to the overall hardness and hardness of the pole body when the Luya pole is stressed.soft rod), UL (ultra -soft rod), L (soft rod), ML (medium soft pole), M (medium pole), MH (medium hard pole), H (hard pole), XH (ultra -hard pole), xxh(Extreme hard pole) and so on.

Third, Luya pole tone comparison table

Fourth, Luya pole hardness comparison table

Fifth, how to choose Luya pole tone and hardness

1. The tone of Luya pole

Children's pole is suitable for handling hard bait, fast -tone road Asian pole is suitable for manipulating soft bait.Because the sensitivity (conduction) of the pole is different, the faster the tone, the better, and the more obvious the bite of the fish is perceived, so we often choose the tone of the fast -tuning above -F or XF.And the throwing the medium -to -MF (MF) pole is better than the fast -tone pole. The comprehensive performance of the medium fast adjustment is strong. In order to solve the problem of throwing, beginners often choose medium fast poles.In the middle, the below -M, S, SS, the sticky fish is better, it is not easy to run fish, and at the same time, it can filter the vibration of the hard bait itself, thereby enlarging the fish news.

2. The hardness of Luya pole

The soft rod is suitable for throwing small bait fishing fish.When throwing, we will use the elasticity of the pole tip, because the soft rod elasticity is good, the bait range is small, the bait is more comfortable, the big bait pole is easy to break, and it is not far away.The elasticity of the pole tip of the hard pole is not enough to drive the small bait. One is uncomfortable, and the second is not far away, so the hard pole is suitable for throwing big bait.

We can choose the Luya pole of different hardness and tone according to different fishing grounds and target fish.For example, the Leiqiang fishing method in the heavy grass area, we can choose the median hard pole; and the use of soft bait fishing catfish, in order to perceive the slight motion of the water, can choose the soft fast rod.

1. Can aloe vera use nutrient soil?

aloe vera can use Nutritional soil.aloe vera is acidic soil, suitable for breeding with loose, fertile, breathable and drainage performance.aloe vera is not resistant to waterlogging, and the soil drainage performance is required. The Nutritional soil dedicated to flowers can also grow aloe.During the maintenance period, the soil can be properly loosen to avoid the end of the soil plate, which is conducive to the growth of the root system.

Nutritional soil is also known as cultivation soil, which can be prepared by a variety of soils, suitable for the growth of flower plants.Nutritional soil is loose and breathable, safe and sterile, high Fertilizer, strong ability to keep water and Fertilizer, suitable for aloe growth.The use of Nutritional soil is very wide. Except for aloe vera, most flowers and plants are suitable for breeding with nutrient soil.

Moisturizing aloe vera with Nutritional soil can be mixed with humus soil, pastoral soil, river sand and coconut bran.Exic soil contains a large amount of humus, high nutrients, long -term cultivation of rural soil, and high Fertilizer.The river sand is granular. Although there is no fertility, the breathability and drainage performance are strong, and coconut bran contains a certain amount of mineral elements.

The Nutritional soil prepared with various soil materials contains a large amount of nutrients. It has strong breathability and drainage performance, which is conducive to the breathing and growth of the aloe root system.After disinfection of the preparation of the soil, it can be used for aloe vera. The soil can be exposed to the sun for 2 to 3 days in the sun.

2. What kind of Nutritional soil is good for aloe vera

How to equip aloe vera with Nutritional soil?aloe vera with Nutritional soil is to consider the loose problem of the soil.It is recommended that you use it, Nutritional soil, corrupt leaf soil, Peanut shell, and perlite. According to the ratio of 2: 2: 1: 1, the soil that matches is not only strong, but also very transparent.There is no need to fertilize the aloe after the year.

After matching the soil, pay attention to its maintenance process. aloe vera is a kind of warm plant, fearing the cold, so pay attention to the temperature when farming is not too low. Generally, the indoor temperature will stop growing. Generally, it will stop growing. Generally, it will stop growing. Generally, it will stop growing. GenerallyIt is the best growth temperature around 15-25 C.It has a strong drought resistance and does not have to water too much. It is dry in winter. Generally, it can be watered once every 15-20 days. It can be watered once every 5-7 days in spring.In addition, its growth requires sufficient sunshine, which can be cultivated outdoors in a warm season, which can make the plant grow more thicker.

In addition, you should pay attention to the aloe that you just put on the pot. Don't rush to see the light. You must first put it in a cool place to prevent it. You can see the light after the seedlings are rooted.It is also necessary to pay attention to too much watering before the plant returns, and try to dry as much as possible.

1. Positioning principle of Beidou system

The 35 satellites run around the earth at a height of more than 20,000 kilometers from the ground, surrounding the earth with a fixed cycle, so that at any time, any more than 4 satellites can be observed at any point on the ground.

Because the position of the satellite is accurate, in the observation of satellites, we can get the distance from the satellite to the receiver. Using the distance formula in the three -dimensional coordinates, the three satellites can be used to form three equations to solve the observation point of the observation point.Location (x, y, z).Considering the error between the clock of the satellite and the receiver clock, there are actually 4 unknown, the difference between X, Y, Z, and clocks, so the 4th satellite needs to be introduced to form 4 squares for solving, so as to obtain the observation point of the observation pointLavels and heights.

In fact, the receiver can often lock more than 4 satellites. At this time, the receiver can be distributed into several groups according to the satellite constellation, and each group is 4, and then the group with the smallest error is selected by the algorithm for positioning, thereby positioning, so asImprove accuracy.

The concept of "arrival time difference" (delay) is implemented: the accurate position of each satellite and the navigation information generated by the continuously sent atomic clock generated on the star of the star to obtain the time difference from the satellite to the receiver.

The satellite sends a radio signal with time and location information in the air for receiving the receiver.Due to the distance factor of the transmission, the time when the receiving machine receives the signal is delayed than the moment when the signal sends the signal, it is usually called a delay. Therefore, the distance can be determined by the delay.The satellite and receiving machine generate the same pseudo -random code at the same time. Once the two yards achieve time synchronization, the receiver can determine the delay; take the delay on the speed of light, and get the distance.

The computer and navigation information generators on each satellite understand their orbit position and system time very accurately, while the global monitoring station network maintains the position and system time of the satellite continuously tracking the satellite.Together with the main control station on the ground, with its operation control section, at least once a day, it is injected into the correction data of each satellite.Injecting data include: determination of the orbit position of each satellite in the constellation and the correction of the star clock.These correction data are calculated on the basis of complex models and can be maintained within a few weeks.

Satellite navigation system time is maintained by the pupae of the atomic clock on each satellite.Within a few seconds of NATO of these star clocks to the world coordination (UTC), UTC is maintained by the "main clock" of the US Navy's viewing table. The stability of each main clock is several 10^-13 seconds.The satellites used two frequency bands and two frequency bands in the early days. Later, it gradually changed to more frequent bands.Generally, within any designated time, only one frequency sign is working on each satellite.

Satellite navigation principle: The distance between satellite and users is based on the difference between the launch time of satellite signals and the time to reach the receiver, called pseudo -distance.In order to calculate the user's three -dimensional position and the bell deviation of the receiver, the pseudo -distance measurement requires that at least the signals from 4 satellites are received.

Due to the errors of satellite Running track and satellite clock, the effects of atmosphere on the signal on the flow layer and ionization layer on the signal, so that the positioning accuracy of civilian use is only tens of meters.In order to improve the positioning accuracy, the differential positioning technology (such as DGPS, DGNSS) is generally adopted, and the ground ground reference station (differential platform) is established for satellite observation., And released to the outside world.After receiving the correction number, the receiver compares it with its own observation value, eliminates most of the errors, and obtains a more accurate position.Experiments show that the positioning of differential positioning technology can be improved to the rice level.

Second, system function

(1) Four features

Shrology communication: Beidou system user terminal has two-way message communication functions, and users can transmit 40-60 Chinese characters at a time.It can reach information with 120 Chinese characters at a time.It has important application value in ocean navigation.

Precision time: Beidou system has a precision time-seeking function, which can provide users with 20ns-100ns time synchronization accuracy.

Positioning accuracy: horizontal accuracy of 100 meters (1S), 20 meters (similar to differential status) after the establishment of a school station.Working frequency: 2491.75MHz.

The largest number of users accommodated by the system: 540,000 households/h.

(2) military function

The military functions of the "Beidou" satellite navigation positioning system are similar to GPS, such as: positioning navigation of motion targets; the rapid positioning of the launch position of the weapon vehicle launch of the reaction time;

This function is used in military, which means that the positioning of troops at all Levels can be actively positioned, which means that once the troops at all Levels are equipped with the "Beidou" satellite navigation positioning system, in addition to their own positioning navigation, the senior headquarters can also pass at any time through at any time.The "Beidou" system masters the position of the troops and conveys the relevant commands, which is quite helpful for the implementation of the task.In other words, the execution of the "Beidou" satellite navigation positioning system can be used to command and control and the battlefield management.

(3) Civil function

1. Personal location service

When you enter a place where you are not familiar with, you can use a mobile phone or car satellite navigation device equipped with Beidou satellite navigation to receive chips to find the route you want to take.

2. Meteorological application

The development of Beidou navigation satellite weather can promote China's weather analysis and numerical weather forecast, climate change monitoring and prediction, and improve the level of spatial weather early warning business, and improve China's ability to prevent disaster prevention and mitigation.

In addition, the meteorological application of the Beidou navigation satellite system has an important impact on promoting the innovation application and industrial expansion of Beidou navigation satellite.

3. Road traffic management

Satellite navigation will help slow down traffic blockage and improve road traffic management level.By installing a satellite navigation receiver and data transmitter on the vehicle, the location information of the vehicle can be automatically reposted to the central station within a few seconds.These location information can be used for road traffic management.

4. smart transportation of railway

Satellite navigation will promote the upgrading and transformation of traditional transportation methods.For example, in the field of railway transportation, by installing satellite navigation terminal equipment, it can greatly shorten the interval between the train, reduce transportation costs, and effectively improve transportation efficiency.In the future, the Beidou satellite navigation system will provide highly reliable, high -precision positioning, speed measurement, and timing services to promote the modernization of railway transportation and realize the transformation of traditional scheduling to intelligent transportation management.

5. Sea transportation and water transportation

Sea transport and water transportation are one of the most widely transported methods in the world and one of the earliest applications for satellite navigation.Most of the various types of vessels driving in the world's oceans and rivers and lakes are installed with satellite navigation terminal equipment to make sea and water transport more efficient and secure.Beidou satellite navigation systems will provide navigation positioning and safety guarantee for water sailing ships under any weather conditions.At the same time, the telecommunications function unique to the Beidou satellite navigation system will support the development of various new services.

6. Air transportation

When the aircraft landed at the airport, the most basic requirement is to ensure the safe distance between the aircraft.Using the advantages of accurate positioning and speed measurement of satellite navigation, you can determine the instantaneous position of the aircraft in real time, effectively reduce the safe distance between the aircraft, and even in the case of heavy fog weather, it can achieve automatic blind drops, which greatly improves flight safety and airport operations.efficiency.By combining the effective combination of the Beidou satellite navigation system with the other systems, more security guarantees will be provided for aviation transportation.

7. Emergency rescue

Satellite navigation has been widely used in searches and rescue in the sparse areas of deserts, mountains, oceans, and other people.When major disasters such as earthquakes and floods, the key to the success of rescue is to understand the disaster in a timely manner and reach the rescue location quickly.In addition to the navigation positioning of the Beidou satellite navigation system, it also has a short newspaper communication function. Through satellite navigation terminal equipment, it can report the location and disaster situation in time to effectively shorten the time of rescue search, increase the time limit for rescue and disaster relief, and greatly reduce the loss of people's lives and property.

8. Guide to grazing

In October 2014, the Beidou system began to pilot the construction of the Beidou satellite grazing informatization guidance system in the pastoral area of Qinghai Province. It mainly relies on the automatic station of the data collection of Beidou smart terminals and pasture for the belligence of the pasture area to achieve data information transmission.The dynamic monitoring of the pasta, cattle, and cattle and sheep through Beidou ground stations and Beidou star groups and relay treated.In the summer of 2015, herders in pilot pastoral areas can use special Beidou smart terminal devices to guide grazing.

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