1. The difference between Ski shoes and ordinary shoes

Skiper and ordinary shoes are very different in terms of design, materials, use and special functions.

1. Different uses

The biggest difference between Ski shoes and ordinary shoes is their purpose.Ordinary shoes are mainly wearing shoes everyday, which can adapt to various occasions, such as walking, exercise, work, gathering, etc.Ski shoes are a kind of shoes designed for skiing activities. The focus is on the support and protection of Ski people to maintain balanced support and protection on rugged snow.

2. Different design

The design of Ski shoes and ordinary shoes is also very different.The design of ordinary shoes focuses on the appearance and comfort. There are many different styles, so that people have more choices and personality expression in appearance.The design of Ski shoes mainly considers that skiers maintain stability and protection in their actions.Ski shoes are heavier than ordinary shoes, because they need to provide sufficient support to prevent falling or injury during taxi.

3. Different materials

Skiper and ordinary shoes are also different.Ordinary shoes are usually designed with lightweight materials such as leather, canvas, and synthetic materials, making them more suitable for daily activities.Ski shoes need to use more durable materials, such as waterproof materials, warm materials, wear -resistant materials, etc., to better protect the foot of the skiers and prevent contact with cold snow.

4. Different special functions

Due to its different designs and uses, Ski shoes also have special functions that ordinary shoes do not have.For example, some Ski shoes are equipped with special claws to walk on steep hillside.Some high -end Ski shoes are also equipped with a special air filtration system to prevent snow from entering the shoes and provide better protection for the feet.

2. Can ordinary shoes Ski?

skiing is a stimulating and interesting sport, but it requires specific equipment to ensure safety and comfort.It is not recommended to wear ordinary shoes for skiing. The reason is as follows:

1. Normal shoes do not have enough grip.During skiing, you need to stop steadily on the snow surface and make various techniques.Ordinary shoes do not have the bottom lines designed for skiing, so they cannot provide sufficient grip, resulting in the speed and direction of skating hands cannot effectively control the speed and direction.

2. Insufficient protection of ordinary shoes and joints.During skiing, skating hands need to wear professional Ski boots because they can provide better foot support and joint protection.Ordinary shoes do not have such a function, which may hurt the feet and joints.

3. Ordinary shoes are easy to slip.During the skiing process, sliding hands need to move quickly on the snow surface. If the shoes are slipped, it will slow down or lose balance.Ordinary shoes have no anti -slip design, so it is easy to slip.

Third, can Ski shoes be worn usual?

Due to the design characteristics and functions of Ski shoes, it is not suitable for usual wear.The outer layer and rigid bottom of the hard -shaped or soft shell make the comfort and breathability of Ski shoes.And because its fixed ankle design is not conducive to daily walking and activities.Therefore, it is not recommended to wear Ski shoes.

What is a sight

The origin or optical aiming device is difficult to verify.It is said that at least in the 16th century Europe, some people have tried to fix the glasses lens on the butt.There are text records that before the 19th century, the firearm had a long -mirror -type aiming device, which could be used for aiming under low light conditions.The scope can be divided into holographic scope, internal red and green scope, and laser sight.

Blame classification

The scope is mainly divided into the following three categories: the long -term scope, the precipitation scope, and the reflective sight.Among them, the Wangyuan sight and reflective sight are the most popular.The above two types of sights are mainly used during the day, so they are collectively referred to as the white light scope. In addition, there are night vision sights for night aiming (adding night vision devices to the above two types of sights, and night vision device according to night vision deviceThe types of types can be divided into micr -light sights, infrared sights (can also be subdivided into two types: active infrared and thermal imaging).

What is the principle of the scope

The scope has both enlarged function and the function of fast aiming.Natural light is absorbed from a optical fiber -made lighting system at the top of the aiming mirror, and a targeting mark is formed by a split plate and then reflected into the eyes of the shooter.

Both the bullets and the sight can be seen as a ray approximately. Two rays located in the same plane and in one direction are either parallel or intersection. In fact, the point in the scope is exactly the ray of the scope and the ray of the bullet.The intersection, the parabolic line of the bullet and the sight line have two focus, as well as the target sight.

The intersection of the scope of the scope and the ray of the bullet may not necessarily fall on the target. This requires adjusting the distance between the scope of the scope and the intersection of the ray of the bullet.In order to adjust, the viewing angle of the sight installation is needed according to the target distance.If you want to make precise shooting, you need to consider the impact of the wind direction, which is the so -called repair.

Is the scope a prohibited product?

At present, it is not included in the category of prohibited products. The sight can be regarded as a collection of things, such as the sights replaced by the collection equipment, which is normal.

The scope generally does not belong to a prohibited item. The criterion for measuring the non -committing is whether there is any harm to others and whether it harms others and national interests.The scope is not a military weapon, not to mention that ordinary sights are only attributed to toys (unable to compare with military regulations).

There is also the purpose of this sight. If it is used to sin or harm the interests of others, of course, if not, it is just a normal Tool.

1. What does fishing rod H mean?

The H of the fishing rod represents the hardness of the hardness, the abbreviation of the English word Hardness. From 2H to 8H, the larger the number, the higher the hardness.Hardness is one of the main parameters of the fishing rod, which represents the overall soft and hard level when the fishing rod is subject to external force. The tone of the fishing rod is two different concepts. Among them, the tone is mainly determined by the fishing rod design planThe hardness is mainly determined by materials and craftsmanship. The hardness of the tune of 19 tunes can be 4h, 6h, or 10h.

The larger the number in front of H indicates that the hardness of the fishing rod is relatively higher, but the hardness of the fishing rod does not have a uniform standard. The hardness of the same H value Fish rod produced by different brands may be different.The hardness is not as good as the 4h fishing rod of the B brand.

2. What are the hardness of the fishing rod?

The hardness of the fishing rod is an important parameter, which determines the performance and applicable occasions of the fishing rod.The hardness of the fishing rod is usually divided into the following Levels. Each level has its specific advantages and uses:

1. Ultra-Light

The ultra -light fishing rod is one of the lightest and softest Fishing rods.They are usually used for fish with smaller fishing types, such as sea bass, carp and catfish.These Fishing rods are very sensitive and are suitable for the situation of smaller bait and lightweight lines.Ultra -light Fishing rods are suitable for long -term fishing because they reduce fatigue.

2. Light (light)

Light Fishing rods are slightly harder than ultra -light, but they are still relatively soft.They are suitable for medium -sized fish, such as sea bass, carp, catfish and small salmon.Light Fishing rods have good sensitivity and ability to throw, suitable for various fishing occasions.

3. Medium (Medium)

Middle Fishing rods are a general -purpose fishing rod that are suitable for various fishing conditions.They are stronger in hardness than light Fishing rods, suitable for fishing medium -sized fish species, such as black bream, wolf fish, miscellaneous fish and part of freshwater fish.Middle Fishing rods have certain elasticity and can help reduce the impact of fish.

4. Medium-Heavy

The medium -heavy fishing rod is stronger and harder, suitable for fishing large fish, such as big horsesy fish, large fishes, large freshwater fish and seawater game fish.These Fishing rods have sufficient strength to cope with the resistance and tensile resistance of large fish, which are usually used to need a larger fishing line group and heavy bait.

5. Heavy

Heavy Fishing rods are the most strong and hardest fishing rod types.They are usually used for large -scale fish fishing, such as large deep -sea fish, great white sharks and huge freshwater fish.Heavy Fishing rods can withstand huge tension and pressure, suitable for extreme fishing.

6. Ultra-heavy

Special Fishing rods are one of the strongest Fishing rods. They are mainly used for fishing super giant fish, such as giant sharks, large deep -sea fish and other large predatory fish.The hardness of these Fishing rods is very high and can deal with great tension and impact.

1. Harm of children's Telescope

Like everything, it depends on how to use it.

The regular Telescope has a precision requirements.

As long as you don't stop like watching the computer all day, you will not let go of eating and drinking water, then as long as it is a regular product, there will be no disadvantages if there is no damage.

Of course, there is another premise that the operation is correct.Do not use Telescope to aim at strong light sources, like the sun.

If children or adolescents, in growth and development, whether watching TV, computer, watching a long mirror or reading, should not be too long, and it is good to stop. Of course, you can go out to see the scenery, which is better.

2. How to choose a Telescope for children

1. Try to choose refracted Telescope.The refraction mirror is easy to operate, observed intuitive, easy to maintain, long use cycle, children can easily master operating skills when using, and it is easy to find and track when watching the target.

2. The diameter of the Telescope should not be greater than 100 mm.Many enthusiasts say that trying to choose a long -caliber Telescope, which is right for senior enthusiasts for conditions and licenses, but for observation needs that only cultivate children's interest, the caliber within 100 mm is enough because it is enough because the diameter is sufficient because it is enough because it is enough because it is enough because it is enough becauseThe caliber is not just expensive, but the Telescope is heavier.From the perspective of children's physical strength, it will reduce the usage rate of Telescopes. The fun of seeking stargazing is inevitable, and equipment is inevitable.The author recommends a Telescope with a caliber of 70 to 80 mm.

3. Try to choose a product with equatorial instrument.The equatorial instrument is not only easy to operate when tracking and looking for targets. What's more important is that it has a concept of redtrayal redness. As long as you master this concept, if you need to buy any other high -level and complex Telescope in the future, it will be lightly carried by the operation.Essence

4. With a 45 -degree positive prism.At present, the astronomical Telescope on the market is mostly equipped with a 90 -degree sky mirror.In this way, the imaging of the Telescope is upside down, and the upper and lower appearances have no effect on the astronomical observation.Because the celestial bodies in the Telescope are generally spherical or a point.Astronomical observation is generally at night. During the day, the moon and occasional moon are except the sun (not using a Telescope to directly observe the sun), leaving only the nature and human landscape around us.However, natural and human landscapes are also the goals of observation. There are also a lot of pleasure in observation. As long as the refractive astronomical Telescope is added with a 45 -degree positive prism, it becomes a multi -purpose equipment for viewing the landscape. Children can also from it.Get more happiness!

5. The price of the Telescope.Combined with the current Telescope market, the refraction mirror of 100 mm and ordinary optical glass is generally between 500 yuan and 3,000 yuan according to different workmanship, accessories, and metal materials (low -end inferior products are not in this column).Higher than this price, it is relatively professional.

MoreTelescopeprice reference & gt; & gt;

6. brand.When you buy a Telescope, you must choose a brand with a wide range of sales services and the public.

1,Flipbelt Flying Bit sports Belt Advantages

The Flipbelt Feibi brand belongs to the American sports brand Level Terrain LLC. Its Chinese operating institution is Flybub (Ningbo) International Trade Co., Ltd.

The Flipbelt Flying Bit sports Belt uses hygroscopic sweats (92%polyester fiber, 8%elastic fiber), strong sweat absorption, fast dry, soft fabric close to the Skin.There are four openings on the waist band. If you want to take or plug in during Running, you only need to rotate the Belt slightly, which will not affect the Running speed.The stitching is reinforced at the opening to ensure that the bag mouth is not easy to crack when it is plugged in large items.Flat seam and roller technology to achieve zero friction.

Special design insurance hooks can hang the keys and other objects on it. From then on, there is no need to worry about dragging the tired body to walk to the door after Running, but find that the key to fall from the waist will not happen.

In addition, you should pay special attention to selecting a suitable size of the size according to your own waistline. The size is too small, uncomfortable in the waist, the size is too large, the shaking is severe, and the Belt effect is lost.The table below is the size reference form:

2. The disadvantages of Flipbelt sports Belt

(1) FLIPBELT Belt is not waterproof. When carrying electronic products for a large amount of sweat, it is recommended to perform additional waterproof protection of electronic products. I do nt know if the Flipbelt waistband has waterproof models.

(2) The price of FLIPBELT Belt is not close enough, and the official website of the United States is $ 29. Compared with it, similar domestic products are slightly inferior to fabrics and functions, but domestic goods have a lot of advantages in terms of price.

(3) In order to ensure the elasticity of the Belt, the correct way to put on the Flipbelt Belt is to put it on the set from the foot, so it reminds that when the exercise is strong, the blood sugar is low, and the lower head is dizzy and wrestled.