1. What is a beach bag

The beach bag is a bag that is suitable for back on the beach. It is slightly larger than ordinary Bags. The style is more casual and casual. It can put sunscreen, water cups, Skin care products, etc., which is a bit like the straw bag.

2. Can the beach bag be washed?

The beach bag is mainly used on the beach. Every time you go to the beach, there will be some dirt on the bag. Sometimes it will even be stained with oil, which will affect the beauty. However, due to the special style of the beach bag, many friends are worried about the beach bag.Can't wash, can the beach bag be washed?

Generally, the beach bag can be washed, but you must pay attention to the method of washing. You can see it when you buy it or wash the water label.Washing in the washing machine and not brushing with a brush, otherwise it will be easily deformed, usually it is recommended to wash it.

Third, how to wash the beach bag

The cleaning method of the beach bag is generally hand -washing. The specific cleaning method is:

1. Put a pot of water, add an appropriate amount of laundry powder to it, put the beach bag in it, and soak for about a day.

2. After soaking, take out the beach, and gently wipe it with a soft cloth.

3. If there is oil or other obvious stains on the beach bag, you can drop a few drops of detergent before soaking in water. After 2 minutes, rinse with water and then soak it.It's right.

4. After cleaning, put the beach in a ventilated and cool place.

People who need waist protection

Lumbar protection is suitable for warmth in lumbar disc herniation, postpartum protection, lumbar muscle strain, lumbar spondylosis, stomach cold, dysmenorrhea, lower abdomen swelling, body chills and other symptoms.

1,Sitting, long -standing crowdEssenceSuch as drivers, described staff, salesperson, and so on.

2. Frequent constitution, people who need to keep warm and orthopedic in the waist.Postpartum women, underwater staff, frozen environment practitioners, etc.

3. Have lumbar disc herniation, sciatica, lumbar Bone hyperplasia and other people.

4, obese people.Obesity can use waist protection to help the waist save effort, and also favorable to control the amount of food.

5. Think of people who need to protect the waist.

The role of the Belt

More and more people are using the Belt. What are the benefits of the Belt?Why use a Belt?

Pressurize

Apply a certain pressure on the muscles to regulate the balance of exercise.To a certain extent, strengthen muscle strength and reduce swelling.The muscles are stimulated during exercise, the metabolism is accelerated, and the amount of water in the muscle cells increases, which causes the cells to have a swelling feeling. Appropriate pressure appropriately can help the exercise easier and powerful.

support

The harder waist custard can provide a certain support during the movement, hold the bending waist, reduce the strength of its muscles, and protect the waist of not sprained or sore.Some functional waist guards are attached to the back of the back of the waist, which can effectively provide greater support to avoid accidental damage. The rear of this waistband is generally higher.

Keep the insulation

The softer and comfortable waist of the double or multi -layer material has a strong insulation function.Athletes often wear less in sports, while waist heat dissipation, easy to get cold, causing people to be sour, spasm or causing discomfort in the stomach.The waist protection of the insulation performance can effectively maintain the waist temperature, accelerate blood circulation, and prevent some discomfort in the cold and stomach.

Sculpture

Strengthen cell metabolism, burn fat, regulate looseness, and apply appropriate pressure to help lose weight.In the movement related to the waist, pressurizing the waist -absorbing waist -absorbing waist can speed up the decomposition of fat, which is a must -have protective gear for waist fitness.

Method of lumbar protection

In today's society, there are more and more white -collar workers.office workers work every day for computer work. Due to long -term sitting position, symptoms of back pain occur are common.Back pain will endanger physical health and also affect work.So how should office workers protect the waist?

1, To exercise in the waist muscles

I can exercise to the waist muscles, yoga, jogging, etc., and can often twist the waist and do swallows flying in bed before going to bed.For sedentary office workers, you can do chest expansion exercise every time every time((At this time, the elbows should be placed flatCure, And back on your waist, pull upwards, etc.

2Four seasons warm

Menstruation, childbirth, etc. can damage kidney qi, so women should always pay attention to the warmth of the waist.For example, during confinement, wearing long clothes should be worn to protect the waist, so as to avoid low back pain in confinement disease.

3, Tun kidney yin

If you have too much menstrual flow, often cold pain, and cold sexual desire, the kidneys should be adjusted in time. women should nourish kidney yin and enhance resistance.You can eat more kidney supplement, such as wolfberry, yam, longan, walnut.I often take some Chinese medicines: Liuwei Dihuang Wan.If you are yin deficiency and fire, you can eat Bai Dihuang Wan, and those with kidney yang deficiency and low back pain can eat Jin Kuang Nephrine Pills.

4.

Those with many abortion are prone to hurt the kidneys and cause inflammation.

5Moderate thickness of the Mattress

There is a physiological curvature at the waist, the Mattress can be properly thickened, and the moderate hardness can be, so that the waist muscles are fully resting.

6, Dont heel too high

Don't wear too high shoes, it is easy to increase the fatigue of the waist. Standing and walking as little as possible for a long time.At the same time, try not to wear low waist pants during physiological and lactation.

The most commonly used waist protection method is to rub your hands until heated and put it on the waist to promote blood circulation.In addition, they often pull parallel bars and backward.

[Polarized Sunglasses] How to choose polarizers to choose polarized Sunglasses

How to choose polarized Sunglasses

The first consideration is the quality of polarized Sunglasses

The primary function of polarizing Sunglasses is to prevent ultraviolet rays and filtrate polarized light. Good polarized Sunglasses lenses can block more than 90%of ultraviolet penetration. Please choose polarized Sunglasses with the best blocking of UV400 to the best obstruction of ultraviolet logo;The inferior polarization Sunglasses of the polarizing filtering function, such as dark Sunglasses, is darker with the light of the human eye and the pupils of human eyes will become larger, and the ultraviolet rays of the eyes will increase, increasing damage to human eyes.

Will there be discomfort in long -term wear polarized Sunglasses?

Genuine polarized Sunglasses have to be comfortable to wear; if you wear bad feelings such as discomfort, dizziness, headache, dry eyes, tingling, etc.Generally, inferior lenses have no technical and functional at all when manufacturing, and the lens materials are also very inferior. Choosing inferior polarizer Sunglasses cannot protect the eyes. On the contrary, it will cause damage to be worthless.

Select polarizing Sunglasses to focus on the protection function of the frame

The protection function of polarizing Sunglasses Apart from the basic functions such as anti -ultraviolet rays, avoiding strong light dazzling, and filtering glare, most polarizing Sunglasses frames are designed with surface arcs. In outdoor sports, it can effectively prevent wind and foreign body stimulation. In additionThe hardness of the lens and the flexibility of the frame of the frame must be considered whether it will hurt the human body.

The selected polarized Sunglasses should be true and natural

The color selection of polarized Sunglasses should be based on the color of the surrounding environment, the edges of the object are clear, and the principle of effectively identifying different color signal Lights.Especially when driving Sunglasses, it is guaranteed to drive safety.The color of the lens is better in gray, tea, and green, because these colors of lenses are better absorbed by infrared and ultraviolet rays, which can improve visual contrast and clarity. Wearing effects in severe air pollution or fog.

The identification of the quality of polarized Sunglasses

Generally, regular glasses shops have instruments to detect Sunglasses resisting ultraviolet capacity. Through instrument detection, you can know whether the glasses in your hands have reached the standard.In addition, the simple method of testing the quality of Sunglasses is: you can use the ultraviolet light sent by a banknote test or a banknote check machine to observe the UV logo pattern on the RMB through Sunglasses. If the quality of the Sunglasses is poor and there is no obstruction of the ultraviolet rays, it can still be clearly clear.When you see the UV logo pattern on the RMB, on the contrary, if the quality is excellent, you can't see it.

How to identify the authenticity of polarized Sunglasses

The polarized lens is made of synthetic resin, which is as light and precise as Contact lenses. After being made, it can be filtered to remove the road reflection under the wet surface or sunlight.Main advantages: light, can filter 99%of the dazzling reflection chaos, 99%of harmful ultraviolet light, not easy to break.In order to filter the dazzling light in the water surface, land or snow, add vertical special coatings to the lens, which is called polarized lens.It is most suitable for outdoor sports (such as driving, maritime activities, skiing or fishing).More and more people chose polarized Sunglasses when choosing Sunglasses.But how to distinguish the polarized Sunglasses you buy has the function of polarizing and UV400.

1. Find a liquid crystal display to face the level of the glasses at the screen. At this time, the lens has not changed. Then when the glasses rotate up the clockwise to 45 , the color of the lens becomes darker, and then rotates and returns to normal.Polarized lenses, if there is no change anyway, it is not polarizing.(Note that it must be a LCD display).

2. The UV400 means 100%blocking ultraviolet rays.

The following method can simply measure the anti -ultraviolet effect of the lens or whether the lens has passed the UV400 identification.The Sunglasses on the market do not necessarily have the effect of isolation of ultraviolet rays. If you want to know if the lens can isolate ultraviolet rays:

Find an ultraviolet banknote test lamp and a one hundred yuan.You can see the RMB 100 of the RMB.If you have a lens with the UV400 function, you cannot see the anti -counterfeiting.

precautions for Polarized Meic mirror

1. Try to use polarized lenses for the lens of driving the lens.Because the biggest trouble of people's eyes when driving is glare and ultraviolet radiation.Only polarized lenses can effectively eliminate glare.As we all know, ultraviolet rays are chronic killers of the eyes, which can cause problems such as cornealitis and macular lesions.

2. Some special feature polarizers will not be obvious when testing polarizers. For example, driving mirrors (polarizing mirrors) lenses at night is relatively lighter, usually light yellow lenses. When testing polarizers, the lens is 45 when it is 45 .Through the lens, you can see that the color of the lens becomes dark yellow, and it will not become black and opaque like a gray lens.

Introduction to military Telescope

The optical systems of military Telescope are different.Most of the military Telescope has a branch board, and its split boards used at night also have lighting.The pupil distance of the military Telescope is relatively large, so that the observer can wear anti -virus masks.In order to prevent hitting the head during the shooting, some aiming mirrors are as large as seven or eighty mm in pupils, and they must also have a moderate tolerant eye mask and lip.

In terms of optical performance and structural performance, military Telescope is more excellent and reliable, because its design is more prudent, with excellent materials and exquisite craftsmanship, such as good quality, less mixed gitons, magnifying multiplication and pupil size matching.Real the best resolution.

Due to the high quality requirements, military Telescope must be tested before the factory, which generally includes vibration tests, high temperature (1055 C) test, low temperature (one 45 C) test, rain or water -soaking test, and gas test.After these experiments, product performance can still be guaranteed to leave the factory within the specified range.Some products also have their own dryer in the mirror body. When the factory is removed from the factory, the air is poured into the dry air or nitrogen to effectively prevent the internal lens from growing mildew in the future.Ordinary civilian Telescope generally does not do environmental tests, or only part of the test.This is difficult to understand from the market, and it cannot be seen from the product appearance alone.

military Telescope main structure

The mirror body: The mirror body is the main body of the Telescope, divided into left and right mirrors, connecting it by connecting the axis. Its role is to support the upper and lower rectangular prisms, connecting object mirrors and eyepiece groups.

The material mirror group: the material mirror group consists of a lens, a lens lens, etc.The material mirror group and the mirror body are connected together with a thread, and the role is to receive the light imaging of the distant object (or target) on the coke.

Eye mirror group: The eyepiece group consists of a lens, a eyepiece frame, a visual handwheel, etc.The eyepiece set and the mirror body are connected with a threading ring. Its role is to amplify the image of the material mirror for people's eyes to observe and turn the vision of the handwheel can be adjusted.It requires that its range is 4 refractives.

Connection shaft: The connection axis is the connector of the left and right mirrors of the Telescope, and it is also the hub that realizes the adjustment of the meson within 58-74mm.

Cover and strap: The lens shelter and the glasses lid are designed to protect the material mirror and eyepiece.When the Telescope is not in use, the cover should be covered to protect the lens without damage.The strap is connected to the left and right mirror of the Telescope. When used, the strap can be hung on the user's neck to prevent the Telescope from being disappointed.

How far can military Telescope be seen

Under normal circumstances, about 3000 meters can be seen. In fact, such a long distance is not very clear. It is best to hold about 1000 meters, so many details can be seen barely.

military Telescope multiple

Without the principle of "standards", regular military Telescope multiple is generally 7 times 8 times and 10 times.

The multiples of military Telescopes should not be too high. The reconnaissance requires a large field of vision, and the high -power Telescope does not meet this requirement. The multiple is super high, the field of view is super small, and it is not easy to find and discover the goals.

military Telescope has almost no more than 10 times.Do not use multiple standards.

In fact, there are also many times. For example, the whistle mirror is ten times twice, but it will be on the shelves, otherwise it will not be guaranteed to be clearly viewed.

How to use military Telescope

Using a Telescope, you must first set your vision.Handheld Telescope to observe the far targets of thousands of meters away.Set the left and right eyes, and turn the eye mirror vision to the snail until it is clear. Remember the number of points of vision.Then set the distance.Both eyes are observed through the Telescope and pulled the Telescope lens barrier, so that the two fields of fields are merged into a circular shape. At this time, the number of sections of the meson is the observer's mesh distance.After using the Telescope for the first time, you should remember your vision and mesh, and then you can directly install it when you use it.When observing the Telescope, hold hands, and the elbow clips are close to the chest. This posture is relatively solid. If there is work or other support, the elbow should be supported as much as possible, especially using a large -rate Telescope.Use a Telescope in the weather or strong sunlight to wear a filter to make the observation clearer.

The dense position in the military Telescope can use the formula of "upper interval, down 1000, dense positions, distances on both sides. If you want to obtain that number, diagonal to remove the neighbor"Follow the target distance.This is specifically described in "military topography", which is a required course for each officer or scout.

1. Meter distance adjustment

First, adjust the positive refractive scale of the Telescope left and right eye mirror to 0 scale.Hold the left and right mirrors of the Telescope with both hands, search for the distant targets at the same time or press the left, right mirror body at the same time, so that the eyesight of the Telescope is the same as the pupil of the human eye (the full view of the human eye is round.), Stop adjusting.

2. Material image adjustment

First search the target. After locking the target, rotate the left -eyed mirror vision hand wheel, so that the target image of the Telescope left branch system is completely clear, and then turn the right mirror vision hand wheel to make the right branch system target completely clear.After completing the adjustment of the observed goals.Because the Telescope light road design has a dynamic automatic focusing function, when the definition of the Telescope is adjusted, you do not need to be re -adjusted when you observe the different goals.

3. Use at night

When the environmental light is dim or at night, it is recommended to use a Telescope with a pupil diameter of more than 7mm.Because human eyes are about 2-3mm in the daytime, the pupil diameter is about 6-7mm in the dark, so the Telescope can collect more light than the naked eye.

The difference between civilian and military Telescope

First of all, their optical systems are different.Most of the military Telescope has a branch board, and its split boards used at night also have lighting.The pupil distance of the military Telescope is relatively large, so that the observer can wear anti -virus masks.In order to prevent hitting the head during the shooting, some aiming mirrors are as large as seven or eighty mm in pupils, and they must also have a moderate tolerant eye mask and lip.

In terms of optical performance and structural performance, military Telescope is more excellent and reliable, because its design is more prudent, with excellent materials and exquisite craftsmanship, such as good quality, less mixed gitons, magnifying multiplication and pupil size matching.Real the best resolution.The shell of the military Telescope use metal instead of plastic to ensure that it does not crack or deform after long -term use.In contrast, ordinary civilian Telescopes are worse in sealing and materials. Some are not only plastic shells, but even internal lenses are made of plastic.

Due to the high quality requirements, military Telescope must be tested before the factory, which generally includes vibration tests, high temperature (1055 C) test, low temperature (one 45 C) test, rain or water -soaking test, and gas test.After these experiments, product performance can still be guaranteed to leave the factory within the specified range.Some products also have their own dryer in the mirror body. When the factory is removed from the factory, the air is poured into the dry air or nitrogen to effectively prevent the internal lens from growing mildew in the future.Ordinary civilian Telescope generally does not do environmental tests, or only part of the test.This is difficult to understand from the market, and it cannot be seen from the product appearance alone.

Telescope maintenance

1. Ensure that the Telescope is placed in a ventilated, dry, and clean place to prevent mildew. If possible, put the desiccant around the Telescope and often replace it.

2. The dirt or stains left on the lens should be gently wiped with a professional cloth to avoid scraping the mirror surface. If you need to clean the mirror surface, you should take a little alcohol with dehydrated cotton.Wipe the edge of the edge, and keep changing the dehydrated cotton ball until the rubbing test is clean.

3. The Telescope is a precision instrument. Do not fall, pressure or do other violent movements on the Telescope.

4. Non -professional personnel should not try to disassemble the Telescope and clean the interior of the Telescope.

1. Where to buy camping equipment

If you want to go out for Camping or Camping, it is important to buy a complete set of camping equipment. Generally, if you want to buy camping equipment, you can consider buying in a large shopping mall supermarket, but it may not be complete.The supporting facilities are all.

However, after all, Camping is still a relatively niche project. Many cities may have no or rarely field camping equipment specialty stores. Then it is recommended that everyone buy it through online channels and search for "camping equipment" directly on major e -commerce platforms.

2. Buy camping equipment online or go to the wild camping equipment store to buy

When buying camping equipment, you can buy it online or buy it through a camping equipment store. So which channel is better?

Generally speaking, if you buy camping equipment, buying online and physical stores has its own benefits. Online buying is relatively cheaper, and there are so many camping equipment. Selective selection is definitely wider than physical stores.If you know more about the purchase of camping equipment, or have a special purchase guide for reference, you can consider online shopping.

Buying camping equipment at the wild camping equipment specialty store is mainly convenient. You can buy camping equipment required for one stop, and you can see camping equipment on the spot. You can try on the spot. Relatively speaking, it is more suitable for novice friends.

3. Can I buy camping equipment for Camping?

In ancient times, human beings survived in the wild. Many people now try to Camping and Picnic in the wild. There is a different feeling, but it should be noted that Camping is to buy camping equipment.

Generally, many Camping places now have camping equipment to rent. For friends who occasionally come out of the camp, if you feel that camping equipment is too expensive, you can also consider the Camping site to rent or buy a simple set of camping equipment.As for decorations such as coffee pots and folding chairs, related equipment will be equipped in the camp.

However, it should be noted that the above is the situation of Camping Camping. If it is a Camping (that is, Camping in the wild), it must be carried by the necessary camping equipment; for novice Camping, it is not recommended to directly Camping.