What are the functions of Ski glasses

Ski mirrors are essential for skiing people. Because the sunlight reflection in the snow is very powerful, and the cold wind is very irritating to the eyes, it is very important to choose the appropriate Ski mirror.

Whether you are a master or a beginner, the right Ski mirror must have the following basic functions:

1. Anti -fog, mirroring fog will blur the sight of Ski people, and it is easy to accidentally accidentally.

2. Anti -ultraviolet rays, the sunlight reflection in the snow, strong ultraviolet rays will burn their eyes.

3. Wind -proof, whether you are skilled or not, the cold wind will stimulate the eyes when gliding.

4. It is best to be a double -layer resin. Even if it is impacted, it will not cause damage to the face.

5. There is a breathable mouth. The upper eaves of the outer frame are used with breathable mouths made of breathable sponges, so that the thermal air discharged from the facial Skin is spread out of the mirror, ensuring that the mirror has a good visual effect.

Which Ski mirror is good

The price of foreign brands is very expensive, and the price of foreign brands sold in China is very outrageous. The price of $ 170 abroad is sold to $ 290 in China. In addition to taxes, there are more profits of dealers.Most of the foreign brands are around 1700 yuan, and most of the domestic brands are below 200 yuan. It is suitable for snowfield tourists.

Buy suggestion:

1. Beautiful perspective, more or less consider matching the color of your favorite skiwear.

2. Quality first, no matter what, skiing is a dangerous movement. It must be the best selection within the scope of the price scope you can bear.

3. Although the snow mirror is a small part of skiing equipment, it also needs to be complete. You can carry a small cloth bag with a snow mirror with you.

4. It is highly recommended that the spherical mirror, the view of the spherical mirror is wider, and its impact resistance and anti -deformation ability greatly exceed the column surface lenses.

How to choose Ski mirror

1. enough strength

First of all, it is necessary to ensure that the Ski mirror is not easily broken by impact, and it is not easy to harm the eyes and faces.There is no thing that will not be damaged, even if it is steel, it is no exception, just to see the power and location of the impact.You know, it is the best snow mirror at present. The professional small rotary athletes with a large amount of training are also destroyed by the flagpole every year!Good snow mirrors do have better strength, stronger ability to absorb impacts, and lower probability of damage.This type of snow mirror requires high -quality frames, lenses, and glue. High -strength resin is the mainstream materials for making frames and lenses. From the current cost of production at home and abroad, snow mirrors with retail prices at more than 100 or even 100 are often still still more than 100 or even 100.It is difficult to guarantee the use of some ordinary or slightly enhanced plastic materials.Many wholesale markets selling glasses and Sunglasses also have similar Ski mirrors or wind mirrors, and the appearance is made of a whistle, but it is slightly twisted in my hand. The creak sound really makes people worry about whether this lens frame will be slightly impact.It will break, wound glasses and faces.

2. Good anti -fog ability

There is no difference between the Ski mirror wearing the fog.The anti -fog effect of the Ski mirror relies on three ways to achieve: the appropriate ventilation inside the snow mirror, the temperature difference between the inside and outside of the lens, and the anti -fog coating in the inside of the lens.The role of point 1 is to reduce the concentration of water steam in the snow mirror, but it will not cause them to condense into fog sharply; the latter 2 is that the warm air in the snow mirror is not easy to condense on the lens even if the humidity is very large, it is not easy to condense on the lensEssenceThe ventilation of the snow mirror is realized through the breathable sponge of the face and facial contact with the snow mirror. The key to ventilation is to reasonably control the size of the ventilation volume: to ensure that the inside warm and humid air in the snow mirror can be discharged as soon as possible through the sponge on the upper part of the snow mirror, and it will not use it to prevent it.The dry and cool outer air from the sponge under the snow mirror is too fast to enter the inside of the snow mirror to cause the lens to be cold, and the saturated water vapor in the snow mirror quickly encounters the cold condensation, thereby reducing the lens fog.To this end, some high -end snow mirrors also have a special ventilation regulatory system that can regulate and control the volume of ventilation.

3. Matching with the face shape

You must try to choose!In particular, the parts of the lower edge of the snow mirror should be in line with the facial and nose bridge, to prevent the water vapor of the mouth and nose from being mixed with the cold wind into the snow mirror, causing a severe mist.At the same time, prevent cold wind from blowing in and stimulating the eyes.Some of them can also try the matching of snow mirrors and helmets. Generally speaking, most snow mirrors and helmets can be worn with each other. There may be differences between the gaps between the snow mirror and the helmet.Asian and European and American models: White and yellow people have different faces, which are very different for snow mirror.European and American nose is high, and the style of mainstream snow mirrors is high in the middle. Most Asians wearing nose will leak wind, causing cold wind to blow their eyes and snow mirrors in a serious fog. For this reason, most candidates have improved Asian brands or European brands.Asian style is better.

4. High -definition

The lens is Smooth and Smooth, and the material of the lens is uniform and no impurities. Only in order to ensure that it is clear, no deformation, and the eyes of the eyes will not be fatigue.The problem lens hurts the vision.

5. Appropriate light transmission rate

It is the depth of the color of the lens that people usually say.Reduce the strong light of sunlight and snowfields to avoid snow blindness and eye fatigue.Those who often skate the night market or shade and snowy areas should be selected with light -colored lenses with light increase and brightening. Frequent dark lenses of the Yangxue Farm in the daytime, and various conditions are Smooth.There are also some discolored snow mirrors and glasses that can replace lenses, which can better adapt to different weather, morning and evening, and different directions.

6. Separate ultraviolet rays

Protect your eyes and prevent sunburn.The isolation rate of general professional snow mirror ultraviolet rays is above 99 %, so there is no need to worry about it.In fact, I personally think that this isolation rate of more than 90 % is no longer meaningful, and the sun is not harmless to others every day, unless it is engaged in welding or ultraviolet disinfection.

7. Ball and column

The spherical mirror has risen in recent years, and the mainstream was the column mirror before.The main differences and features of the two are:

(1) Visual error: In the level of glasses, the horizontal error of the left and right of the spherical mirror and column mirror is the same; but when the eyes look up and down, the vertical error of the column mirror is gradually increased than the vertical error of the spherical mirror.This is the players of the single board player and the dual -board medium slipfer and grind style (flying, air turning, rotation, steel pipes and U -shaped grooves). Because they often need to look up and down, they need more accurate control actions and falling points. They often choose to chooseThe reason for the spherical mirror; of course, the spherical mirror looks more public, and it is in line with this style.

(2) The sphere is relatively stable and more resistant to impact than the column surface structure.

(3) Because the head is an elliptical ball type with a long up and down, especially when wearing a helmet and column mirror at the same time, the overall front wind resistance of the head of the head is smaller, and the double -board racing players are basically maintaining the level at the slide. ThereforeAlmost all the double -board racing players choose almost all column mirrors.

(4) The same protrusion level, the space inside the column mirror is greater, so almost all the snow mirrors wearing myopia mirrors are almost designed.

In addition, after the spherical mirror with color or chrome -plated mirror coating, it is indeed more modern and more in line with the current aesthetic trend.

8. Double layer and single layer

Double -layer lens protection capabilities are stronger and the anti -fog ability is higher.Generally, the same snow mirror, the price difference between a single layer and double layer is 100-200 yuan.Individuals need to choose according to economic conditions.The double -layer lenses are also different. Some of the two -layer lenses are sealing, and some two layers of lenses are pasted with rubber or sponge pads around a circle.The former's anti -impact and anti -fog ability is better than the latter.Some say that the two -layer lenses are pumped into vacuum in the middle. I personally do not agree, because the thin and soft double -layer seal resin lens, if the middle is vacuum, the middle part of the two layers of lenses will be pressed together by the outside atmosphere.Or at least the trap, but the actual observation is not the case.Therefore, between the two -layer lenses, the air or nitrogen gas that removes the moisture should be filled, which not only prevents the fog, but also slows down the lens oxidation and aging.

9. The choice of lenses of different colors

Different colors have different characteristics: silver lens: minimize the brightness, suitable for strong use in the sun.Smoke gray lenses: reduce brightness, natural color, suitable for ordinary sunny days.Dark blue, blue, purple lenses: absorb dazzling yellow.Green lens: eyes are not easy to fatigue, suitable for wearing all day.Red lenses: When the light is dark, it can improve the ability to recognize warm colors with the naked eye.Brown lenses: enhancement contrast, inadequate use in the morning, cloudy, and lack of light, keeping the vision clear.Yellow lenses: light increase, make the field of view bright and clear, suitable for the dark situation in the morning, dusk and other light.There are many other colors, which are not described here.

How to use skiing mirrors in myopia

1. Wear a Ski mirror after wearing Contact lenses

Advantages: affordable.Save time and effort.The price of Contact lenses is relatively low. It is recommended that during skiing, we choose daily throw high -transparent oxygen Contact lenses. It does not need to be cleaned and easy to wear.Of course, it is not suitable for wearing Contact lenses for eye redness, swelling, soda, and inflammation.

Disadvantages: poor sanitary conditions and insufficient safety.eyes are easy to swell.During skiing, the weather is often gloomy and windy.Wearing Contact lenses is easy to dirty, it is not convenient to clean and replace, and the Contact lenses are worn inside the snow mirror, affecting the oxygen permeability of the eyes, which can easily cause redness and swelling of the eyes, and severely cause inflammation.When the high -strength exercise or falls, the eyes will bear a certain pressure, and the Contact lenses can be easily pressed out. At this time, can the Contact lenses be worn back, can they find it?Can I clean it?These are hidden dangers.If the Contact lenses are broken in the eyes, it will be even more incapable.

2. Wearing a Ski mirror that can directly "card" Myopia glasses

Advantages: Choose a Ski mirror that is relatively large internal space and directly buckle on Myopia glasses.This is a fairly affordable and effective way.

Disadvantages: The requirements for snow mirrors and Myopia glasses are relatively high, and the center point of myopia lenses is not easy to wear poorly wearing comfort on the pupils.The Ski mirror that can directly "card" Myopia glasses is relatively high in snow mirror. It is mainly designed on the frame and increases production costs.The position of the temples on the left and right sides of the frame generally opens the groove to facilitate the mirror leg of Myopia glasses.Although this kind of snow mirror has large internal space, it is not suitable for all Myopia glasses. Generally, we recommend wearing: memory or TR90 material, good mirror leg flexibility glasses, and myopic glasses use anti -fog lenses. People with small frames are used.This method.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is valid. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;

[The role of life jacket] What is the use of aircraft life jackets for aircraft life jackets?

What are the use of aircraft life jackets

When it comes to life jackets, many passengers will think of evacuation at sea.But some passengers have questioned: Why do inland routes still need to be equipped with life jackets?That's because the plane may fly over the river and lake during the flight. If it is necessary to surrender at this time, it is likely to be forced to land on the river or lake, and naturally you need a life jacket.

The life jackets on the plane are divided into two types: red and yellow.The red life jacket is used, and the yellow life jacket is used for passengers.Even if the plane is not forced to land on the water, when the remote land from the airport is forced to land and evacuate, wearing a life jacket can make passengers more conspicuous in the open area, so that rescuers can be found in time, and in areas where low temperatures, strong winds and ice coversIt can also play a role in protecting the cold.

The life jacket is mainly made of nylon materials. There are two airbags up and down. There are two small high -pressure gas cylinders between the airbags distributed on the left and right sides of the life jacket.There are two red inflatable handles on the lower side of the life jacket to pull the red inflatable handle, and the life jacket can automatically inflatable.

There are also artificial gas pipes on both sides on the upper side of the life jacket. This is a unidirectional door similar to the bicycle valve core.When the life jacket is insufficient or leaking, pull out the artificial inflatable pipe, and you can inflatable with your mouth.When holding the top of the artificial inflatable pipe by hand, the gas will be released from the life jacket.There are positioning Lights on the top of the life jacket.It is powered by the seawater battery. After the seawater battery is soaked in water, the positioning light will automatically emit light within a few seconds, and it can continue to use it for 8 hours to 10 hours, which is convenient for the water drop -off to be found at night.

The life -saving jacket is divided into two types: baby life jacket and adult life jacket, which are stored in different positions.First -class and official class passenger life jackets are generally stored under the armrest armrests; ordinary cabin passenger life jackets are placed under the seat, and they can be touched by lowering their heads. Infant life jackets are generally placed under the first row of baby cradle seats in the cabin.Children under the age of age need to use baby life jackets, while children over the age of age can use adult life jackets.

precautions for the use of aircraft life jackets

According to airline staff, the life jacket should be inflated before leaving the plane and before boarding the Ship.This is because the life jacket will be bloated after pumping, and passengers can easily crowd the aisle and exit when they evacuate, which affects the evacuation time.And the inflatable life jacket is easily cut and leaked by sharp items, losing life -saving function.In addition, if the aircraft gets in water, the life jacket will make passengers drift in the cabin, and even pushes even on the cabin ceiling, which is difficult to escape.

When the plane is forced at sea, passengers should not try to swim in life jackets unless they need.Because the temperature of the water and water is low, the average surface water temperature does not exceed 20 degrees Celsius, and the temperature of 13%of the water meter temperature is less than 4 degrees Celsius. Adults in thin clothes survive in the water temperature of 10 degrees Celsius for about 2 hours to 4 hours.Cold water should be reduced as much as possible to save energy.

It is worth noting that parents and passengers should pay attention to the life jacket they wear when they are hugged. The life clothes of the mother and baby should be tied together.For children, only half of the breath of the life jacket you wear after leaving the seat (pull a inflatable handle).In terms of methods, life jackets should be worn on the outermost clothes.

1. What is the cost of gliding umbrella training

If you just want to experience the gliding umbrella, just go to the glu umbrella club to participate in the coach's flying, but if you want to really learn the gliding umbrella, you need to be trained and verified. At present, the cost of gliding umbrella training is high or low, and the specifics are not fixed.

Generally, the curriculum settings, business service concepts, and professionalism of different gliding umbrella clubs are different, and the training costs will be different. The cheap one may only be three or four thousand yuan. This is usually a personal training.; The ordinary ones are about 5,000-8000 yuan, and the expensive ones are more than 10,000 yuan.

Note:The above information source network, the price is for reference only. If you want to know the specific price, it is recommended to contact the local gliding umbrella club for inquiries.

2. precautions for gliding umbrella training charges

The cost of gliding umbrella training is very different, it is not necessarily expensive, and it does not mean that it is cheap and there is no good coach. When registering, everyone should consult the following points in advance:

1. Does the gliding umbrella club have a Ski umbrella flight base in legal airspace?

2. Is it a short -term rental behavior? Flowing teaching, withdrawing it after teaching?

3. Is the coach who certified the Chinese Aeronautical sports Association certified qualifications?

4. Is the head coach stationed in the field instead of the coach?

5. There are many comparisons for the projects of training courses. Is the course charging clear and whether there are other hidden charges?

6. Can I still come to the base for flight training after the course graduation, and do I have to give other expenses at the base?

3. How long does it take for gliding umbrella training

Global umbrella training is not a long -term training process, because the gliding umbrella itself is easy to learn and difficult to learn, and it is not too difficult to learn. The training reaches the time when the gliding umbrella flight is used.

1. Coaches direct flight

It usually takes 5-7 days.Command flight refers to take-off and landing under stable weather conditions. The training is mainly to conduct preliminary theoretical learning, ground umbrella exercises, and simulator exercises.Umbrella teaching, from this stage, requires more stringent weather conditions. The two-person umbrella teaching is basically 2-3 times. The specific judgment is based on the students' psychology and actual operation. If the weather is good, it can be completed in half a day.It is the intercom to direct the flight.

2. Coaches take care of flight

It usually takes 10-15 days.Coaches take care of flights means that under the better weather conditions, students fly within the scope of the coaches.The staff will still conduct command.If you meet this standard, you need to complete the coaches of the previous stage to direct flight. Based on the command flight, you need to complete some conventional intermediate subjects.Enter the coach command to fly.

3. Take off, take routes, landing

It usually takes 15-20 days.The technical level of this link has accumulated more flight stands and experiences than coaches' care for flight, and can be initially taken off and land under good meteorological conditions.

4. Skilled and regular flight subjects

On the basis of the third link, it increases for 10-20 days. It mainly learns subjects in front and rear, 360 , accelerator use, bilateral folding wings, swinging left and right, and even unilateral wings, spiral declines and other subjects.The situation will be different, and the study time will be different.

It should be noted that the time mentioned above is the time required for the suitable weather. The gliding umbrella requires higher the weather conditions, and the inappropriate weather cannot be trained and practiced.

Do you want to wear socks to practice yoga?

For beginners, barefoot exercises can better grasp the position of the point of strength; barefoot exercises can also let your feet get rid of the restraint, better grasp the points and make some adjustments to the posture.When the weather is cold in winter, you can also wear yoga socks, which first plays a role in warmth. Second, professional yoga socks are made of non -slip particles.Partial auxiliary Tool.It is okay to practice yoga as long as you find the right way to practice barefoot or you can find a suitable way.

Can you practice yoga?

1. Be better to balance

Practicing yoga barefoot, the feet feel more detailed.It can clearly feel the stress point of the soles, adjust and maintain the stability of the foundation at any time, and find the main points of practice, and can better maintain a balance.

2. Massage the feet meridians to promote blood circulation

When you touch the ground, the feet nerves are more sensitive, can massage the feet's meridians, further promote blood circulation, make breathing smoother, make the body more coordinated, and make the body more stable.

3. No restraint, more relaxed

Practicing yoga in barefoot, no restraint of shoes and socks, it is easier to open up and relax themselves during practice.

Which yoga socks are good

1. Full toe yoga socks: Wrap your feet at 360 degrees in all directions to prevent injuries during exercise.

2, revealing yoga socks: expose the instep to avoid sweating too much. This style of yoga socks are suitable for summer wear.

3, open -toe yoga socks: This style is fashionable and novel.

4, five toes separate yoga socks: This style is healthier and hygienic.

5. Two toe integrated yoga socks: separate the thumb from the four other toe, fashionable and healthy.

6. Anti -slip yoga socks: When the action of yoga is more difficult, you need to wear non -slip yoga socks to effectively avoid slipping, and more comfort.

How to choose yoga socks

1. The bottom of the yoga socks must have rubber non -slip particles. The rounded and full particles can provide the feet in the movement to provide the effects of stopping, buffering, and shock absorption.

2. In addition to rubber particles, there is a super cotton coil inside the bottom of the good yoga socks, which has the effects of buffering, breathable, sweat absorption, and shock absorption.

3. yoga socks are generally thicker, avoid touching the ground to make the soles of the feet too cold.

4. yoga socks should also have anti -slip, antibacterial, and deodorization effects to avoid the embarrassment of sweat during exercise.

[sports pants] What are the black sports pants types of sports pants?

Now people's pursuit of freedom, love for life, and the popularity of movement.sports pants are also selling hot. Everyone wants to know what kind of sports pants are there? So when you buy, you can choose the one that suits you best.After all, you not only need to wear exercise, but also reflect your fashion and taste.This is the most perfect product.

What are the types of sports pants?

There are many types of sports pants. After all, as consumer demand increases, and at the same time, more designers have invested more enthusiasm for this and make it more changeable.Ordinary sports pants types are pursuing a more comfortable dressing experience. At the same time, they can have good sweating, breathable, and allow everyone to wear them.EssenceIt's just a bit different from the tailoring on men and women.Generally women's hips are more loose and longer.As for the type of sports pants, it is the storage pipe of the straight Tube, which is comfortable to wear experience.

Then with the increase of people's pursuit, the type of sports pants has changed, and Harun pants are a very popular type of women.Its main feature is that the crotch will be relatively large, so that women of various figures will feel very comfortable to wear.At the same time, with the lower extension of the warehouse Tube, it will gradually shrink. When it is on the feet, it can be tightly shrunk together or let go.This not only perfectly reflects his body, but also avoid exercise discomfort.There is also a type of sports pants, which is a Galeca with new types of materials. It can make the sports pants tighter, because it has strong contraction.Unwilling effect.These can be selected according to your own needs.

What to do if black sports pants fade

The newly bought black sports pants can not be worn first, and it will have a good effect with water first.Remember, when you rush, add some white vinegar in the water. In this way, after soaking for about ten minutes, you will wear it later, and you will not be easy to fade.

If you find a color loss if you find a color loss, remember that when washing, do not wash it with hot water, but soak it with cold water, and then wash it. In this way, black sports pants are not easy to fade, and you can keep it for a long time.color.

If the black sports pants are seriously fell, remember, turn the pants over and wash, that is, turn the inside and turn it inside. When washing, rubbing the inside will reduce the impact on the outside, which is equivalent to the outside outside.The color loss will not be very serious.

Of course, if you are still worried about color loss, you can add some salt in the water. This will help lock the black in the pants and not to drop the color when washing. In this way, the effect is outstanding.

Black sports pants should not be washed with a washing machine. It is best to wash it by itself. In this way, it will not let the washing machine destroy the texture of the black sports pants.

Black sports pants are also afraid of the sun, so when you are exposed to pants, remember that if you want to turn over, you are facing the sun and turning inside.