1. What kind of material is good for climbing rod?

Generally speaking, the difference between aluminum alloy Climbing stick and carbon fiber Climbing stick is mainly in weight and durability.The material of the Mountaineering stick is carbon fiber, titanium alloy, aerospace aluminum alloy, and general aluminum alloy from light to heavy.Both carbon fiber and titanium alloy are the materials that the climbing sticks of higher prices will be selected, but because the Climbing stick is a mountaineering consumable, the relatively affordable and solid and durable aluminum alloy is the mainstream of the market.Quantity and sturdy.

The material will directly affect the weight of the Climbing stick. You can choose according to your pursuit of mountaineering lightweight. If you have planning to bring abroad to Hiking in the future, it is more convenient to choose lighter.In addition to considering weight, you also need to pay attention to its maximum gravity.The solid and high -quality climbing sticks can be guaranteed to be high outside the mountain, but they will actually be much durable.Below, we will introduce the performance of aluminum alloy mountaineering sticks and carbon fiber climbing sticks from the aspects of weight, durability, price, and use environment.

2. What kind of carbon fiber and aluminum alloy Climbing stick is good

1. Weight

Aluminum alloy mountaineering rods are often heavier, while carbon fiber climbing sticks are relatively light and portable.

2. Duration

The material of aluminum alloy is tough and durable. The metal has a certain toughness and can bend, so the aluminum alloy material is stronger than the carbon fiber material.The toughness of carbon fiber is poor, so the Mountaineering stick made of this material is lacking toughness and is often easy to break from the middle.

3. price

In terms of price, aluminum alloy is cheaper than carbon fiber.

4. Use environment

The intensity of aluminum alloy climbing sticks is good, which is more suitable for the softer hillside with a larger slope.carbon fiber climbing rod has good toughness, lighter than aluminum alloy, and is more suitable for hard geology and small slope.

The above is comparison of the performance of aluminum alloy climbing sticks and carbon fiber climbing sticks. By introducing, you must understand the differences between aluminum alloy climbing rods and carbon fiber climbing rods, so choose the material of the mountaineering rod can be determined according to your preferences and usage habits.Can help everyone.

[Types of warm and warm box] Classification of cold and warm boxes of car warm and warm boxes and compressed locomotive refrigerators are better

Working principle

In addition to the "refrigeration" effect using semiconductor cooling boxes, it can also take into account the heating effect, but its "refrigeration" effect is far less than the refrigerator that uses the principle of compressor.It is only about 20 C than the ambient temperature, so it can only have the effect of cooling.

The refrigerator using the compressor is the real Car refrigerator. In addition to the fast cooling speed, some products can even reach -18 C's freezing capacity.However, its disadvantages are also very obvious. It does not have the heating function, the price is much higher than the warm and warm box, and at the same time, there are many restrictions such as direction (upside down) in the use.

Functional design

In addition to the different working principles, there are some differences in the functional design of these two types of car refrigerators. We also need to brighten our eyes to distinguish when selecting, so as not to affect the actual experience and effect.

Compared with the high price, using a compressed Car refrigerator with a compressed machine, the cooling and cold box of semiconductor refrigeration has absolute advantages in terms of price.At present, the price on the market ranges from tens to hundreds of yuan, and the low price can be accepted by most consumers.

The semiconductor refrigerator is also called an electronic refrigerator. It is different from other refrigerators that use compressors. The principle of semiconductor refrigeration is used. The principle of Parrad Patch is used by a smaller semiconductor chip.The medium -current circuit releases heat at the metal joint of the node when passing through the node, and achieves the ultimate goal of refrigeration and heating through different current flows.

When this semiconductor refrigerator is working, there is no vibration of any other mechanical components except the heat dissipation fan, and low noise, long life, and non -wear are also the biggest feature.However, its disadvantages are also very fatal in the eyes of many people. Compared with good heating ability, its refrigeration effect is poor and does not have the refrigerator of the compressor refrigerator. Generally, the ideal refrigeration temperature is only about 20 C.

With the continuous improvement of technology, some manufacturers upgrade the refrigeration capacity of traditional cold and warm boxes by increasing the area of refrigeration film, but it is still affected by the great ambient temperature. In addition to the refrigeration speed, it is better than using a single refrigeration system.Fast, there is no essential improvement in refrigeration ability.

Therefore, this kind of warm and warm box is more suitable for use in ordinary household cars. After all, compared with the more than the cabin of the cab, the space of the car is much smaller, and the air conditioning refrigeration effect is more obvious, making the working environment of the warm and warm box lower."Refrigeration effect" is more obvious.

In addition, we also need to pay attention when buying. At present, some vertical warm and warm box that supports the dual -use of the car households is used as a flat door design, and except for magnets on the door, there is no door lock.The sealing effect is easy to condense the moisture in the external air, so that the embarrassing situation of stagnant water around the refrigerator will seriously affect the daily use experience for a large vibration truck cab.Therefore, we should try to buy those who open the door and the bottom with a fully enclosed crooked warm and warm box.

The Car refrigerator that uses a compressor method is the same as ordinary household refrigerators in principle. The process of continuous circulation such as compression, condensation, expansion, and evaporation of internal refrigerant is used to reduce the internal temperature inside the refrigerator.It is just out of portability, and its volume will be even more compact.Because its core components are compressors, it is much more expensive than semiconductor refrigerators.

On the other hand, compared to the real and durable warm and warm box, the compressor refrigerator is relatively "delicate". Although some products claim that its compressor can work normally under 45 , we also need to pay attention to daily use in daily use.Avoid accidents such as bumps and flipping.

Having said so much, many people may ask why some cold and warm box claims to reach the refrigeration capacity of below zero X , but it is far from the actual use?Because some people ignore a factor, that is the ambient temperature.Especially for the cold and warm box, the cooling results of the ambient temperature at 50 C and 25 C are very different. If the refrigeration capacity of 20 C, the final refrigeration result of the two will be as much as 25 C.

Comparison

The price of the "warm and warm box" is basically below 1,000 yuan, but the cooling effect can only reach the point of cooling, suitable for some areas with low requirements and low environmental temperature.Lost meaning;

Compressor vehicles carry refrigerator: The price is basically above 2,000 yuan, but the cooling effect is good, it can freeze, there is no problem with ice cream, ice cream at all, and even drink iced (iced) drinksIn high areas, even if the ambient temperature exceeds 37-38 degrees, or even more than 40 degrees, the temperature can still reach -10 degrees when it is filled with things.

Pay attention to the use of car refrigerators

Select the right capacity according to actual needs

Do not cover the body's heat dissipation holes to avoid affecting its heat dissipation ability

Do not store magnetic objects in the warm and warm box, so as not to affect the effect of refrigeration chip

Need to clean the inside of the refrigerator regularly to avoid bacterial breeding

When switching from refrigeration to heating, you need to wait for the internal recovery of the ambient temperature

Try to choose products with low voltage protection (battery protection) function when buying

If 24V power supply is not supported, you need to buy antihypertensive equipment (24V to 12V)

It is best to pull out the refrigerator power supply when stopping

When using a compressor refrigerator, fix it in the car, avoid inverted and obliquely.

Do not put carbonated drinks and beer for a long time in the frozen area of the compressor refrigerator, which is dangerous to explosion.

1. All -inclusivetightsWhat is the role

1. Strong protection

All -inclusive tights are generally made of latex, which is better than general fabric materials.

2. waterproof

As we all know, latex can be waterproof, so wearing all -inclusive tights also has a certain waterproof effect.

3. Display body

The all -inclusive tights are very tight, so after wearing a full -covered tights, people can perfectly reveal their bodies.

4. Good elasticity

One of the properties of latex is good elasticity, so all -inclusive tights may look very tight, but it can stretch it. Don't be afraid that if you have a little fat, you can't wear it, and there are numbers to choose from.

2. How to wear all -inclusive tights

Although there are many functions of all -inclusive tights, they often do nt know how to wear it after buying it and how to wear all -inclusive tights?Next, I will introduce the tutorial of all -inclusive tights, let's take a look together!

1. Please roll the tights from your waist to the toes with both hands, and then make the toes and heels that match each other.

2. Hold the front and rear parts of the tights, and then pull each other to the knees, make it uniformly put on the leg and belly part.

3. The front and rear of the socks, and the legs cross each other slowly to the thighs.

4. After both feet are rolled to the lower crotch and determined to be close to the gap, the pants are opened with both hands and pulled it to the waist, but be careful not to pull too high.

5. Finally pull upzipper, Lock.

1. Do you want to buy a big size in the stream shoes?

When choosing a stroke shoes, the size is a very critical issue, because a suitable shoes can make you more comfortable and comfortable, so do you need to buy a big size in the stream shoes?

If you want to swim or adventure in streams in streams, it is recommended to buy a big size shoes.This is because wearing stream shoes in the stream often occurs when stepping into stones or potential dangers.If the shoes are too tight, it may cause discomfort or even pain on the foot, which will affect the movement freely.Therefore, choosing a large number of stream shoes can ensure sufficient comfort and flexibility, and better enjoy the fun of stiring.

2. How much is a pair of shoe tracing shoes

The price of streaming shoes is not static. The price of different brands, materials and production processes is very different.Generally speaking, the price of stream shoes is between hundreds of yuan, but there are also higher prices.

First of all, the brand is an important factor in determining the price of the stream.Generally speaking, the prices of the internationally renowned Outdoor brands will be higher than the price of domestic brands.This is determined by factors such as the popularity of international brands, the advancement of technology and materials, and the exquisite production process.The price of streaming shoes from abroad will also be higher, because it contains the cost of import tax and the cost of transnational logistics.

Secondly, material is also an important factor in the price of streaming shoes.The materials of the stream shoes are generally divided into two types: rubber soles and bionic soft soles.The streams of rubber soles are low in price, but the scope of applications is small, which is only suitable for exercising on dry or slippery hard ground.The price of bionic soft bottoms is relatively high, but it can better adapt to the rugged ground in water and provide better anti -slip and cushionability.In addition, a new material on the market -Vibram yellow gum, in addition to the above advantages, also has super wear resistance and durability, so the price is not higher than the creek shoes of ordinary bionic soft bottoms.few.

Finally, the production process is also an important factor in the price of stream shoes.A good manufacturing process can ensure the comfort and waterproofness of the stream shoes.At present, most of the stream shoes on the market are mostly used with upper and sole gum bonding technology. This production process is relatively simple and the price is relatively low, which is suitable for general outdoor activities; and some high -end stream shoes adopt integrated type.The production process, that is, directly pour the upper and soles into one. This process can reduce the defects of sewing and adhesive, improve the overall performance of the shoe, and the price is relatively high, suitable for highly difficulty in the stream.

For consumers, you need to choose the appropriate stream shoes according to your needs and budget. Before making a purchase decision, it is best to make more market research and comparison to find the best cost -effective one.At the same time, pay attention to whether it meets the national quality certification standards when purchasing, so as not to buy fake and shoddy products, affecting experience and safety.

1. What is a newborn Insulation box

newborn Insulation box, also known as premature Insulation box and newborn culture box, is used for premature infants insulation.Premature babies are afraid that cold is difficult to adapt to the external environment. So it is necessary to put it in the box. It has no effect on children. It is quite a small box with air conditioning to provide children with temperature.Because the physical function of the premature BB can not be fully contacted with the outside world (especially the respiratory tract is vulnerable to infection), it is the safest in the thermal Insulation box, and the Hospital will regularly disinfection.

2. How much is a newborn warm box a day?

The cost of infant warm boxes is relatively expensive, and different regions and Levels may be different.Calculated by day by day, ranging from 500-1000 yuan per day.

The charging standards for living in the heating box are different from the Hospital, and the drugs, instruments, and care of the need to be used during the period will be different. Generally, 1,000-3000 yuan will be required to consult the local Hospital.

There are two main types of babies who need to enter the heating box: one is premature babies, because the body temperature is low, and the ability to regulate the body temperature is not perfect. ThereforeStay in the warm box for 10 weeks, and when the birth time reaches 35 ~ 36 weeks, weighs 1.8 ~ 2.0 kg, it can only be discharged after various life signs stable.The second category is the critical condition that needs better care and observation babies.

3. What is the role of baby warm box

1. Avoid infection.The resistance of premature babies is particularly low. It is placed in The insulation box to avoid the possibility of contacting the outside world, and the air has no dust and bacteria, which plays a role in protecting newborns.

2. Keep warm.Premature babies are afraid that cold is more difficult to adapt to the external environment. The temperature in the thermal Insulation box is very reasonable, and it will control the temperature according to the baby's body temperature.

4. precautions for the use of premature babies

1. Determine the temperature of the box according to the weight of the baby's birth and age.The lighter weight, the smaller the age, the higher the temperature of the box.

2. The heating box should be preheated before the temperature required, and gradually adjust it, and the box temperature should not be lifted sharply in a short period of time.

3. The temperature is the real ambient temperature.The so -called "functional temperature" refers to the average value obtained by the air temperature and the surface temperature of the inside of the box (about the air temperature in the box and the intermediate value of the indoor temperature) in the box wall (about the intermediate value of the indoor temperature).For example, when the box temperature is 32 degrees Celsius, when the room temperature is 20 degrees Celsius, the temperature of the box wall is about 26 degrees Celsius, and the functional temperature is 33*40% 26*60% = 28.4 degrees Celsius.Lost heat through radiation heat transfer.

4. The relative humidity in the box should be maintained between 50 and 55%.

5. Before the out of the box, gradually reduce the temperature of the box, over -dressing, and add a thermos beside you.If the body temperature can be kept 36.5 degrees Celsius, it can be released.

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