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There are two types of lenses that are specifically designed for nearsighted people. Not only the nearsighted ones, but also one that can be worn at night.


Sunglass clip: Sunglass clip is a polarized sunglasses specially designed for nearsighted people, which effectively prevents glare and ultraviolet rays. It is especially suitable for outdoor sports such as driving, outdoor and fishing. Using polarized lens technology, the visual resolution is greatly improved. Eliminate 99% ...

definition
The pore size of edible silica gel is about 8-10nm, the specific surface area is 300-500m2/g, and the surface is hydrophilic, and it has strong water absorption capacity. Under high humidity, its water absorption can reach more than 80%-100% of its own weight. . Therefore, food-grade silica gel can be used as an external desiccant for food and medicine. silicone molding manufacturer


Since edible silica gel is refined and sterilized, it can be mixed with food ...

The answer is yes. Generally, the memory card used in the card headset is a mobile phone memory card, which can download songs to the memory card, and data download can be realized without a card reader or connection to the mobile phone headphones with memory card Function, very convenient


The first type you are talking about may be a Bluetooth headset, which is to connect your mobile phone or player wirelessly, provided that your devices support Bluetooth function. And this ...

Did you know that just about all gadgets or electronics applied in your daily life have got a frequent fundamental element? Virtually any electronic system, in addition to your Personal computer, laptop computer, smartphone, online game gaming system, micro-wave stove, Television, dishwashing machine, etc., is not going to work correctly without PCB assembly. So, what is PCB assembly?

Just what does PCB construction indicate? With an increasing number of companies in China seeking to ...