Nowadays, there are more and more people live on computers
It is widely rumored that cactus can reduce the computer radiation. Many people believe it and put a cactus beside the computer. Cactus lives at the place with strong sunlight, so it has an exceptional ability of absorbing radiation. However, there is no research experimental report showing cactus has better radiation absorption ability than other species.
Now, many white collars would love to wear the computer glasses to protect their eyes from being damaged by the computer radiation. You are generally recommended to buy computer glasses from the formal glasses stores. But in today when the e-commerce prevails all over the world, you can get a pair of desirable computer glasses from the online stores.
Maybe some people will worry about that the glasses are not suitable for them, but the online try-on will get rid of your worry. The only thing you need to do is upload one of your head shots first, and then try-on the glasses which you have settled on one by one till you find the most suitable one. No one will interfere with your trying on, so you don't need to be afraid of annoying the sellers just like in the brick-and-mortar shops. In addition, the prices of the glasses are much lower than that in your local shops and you can get the cheapest computer glasses as there are thousands of online shops for you to shop around without going anywhere.
Even with so many advantages, most of the glasses you bought from the online stores never compromise in their qualities, except for some inferior glasses. So you should be as careful as possible to check all aspects of the products while purchasing computer glasses online.
Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
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