If people have certain vision disorders, they
Generally, optical devices can be categorized into various groups according to different criteria. Each of them is ideal option for people of certain groups. Here are some typical examples.People who have some problems in seeing tiny objects may have a try on eyeglasses with magnifying function. These eye wear are usually called magnifying glasses.Magnifying eyeglasses can enlarge the pictures of those tiny objects up to tens of times. This ensures people enjoy rather ideal vision effects.
People who can not see clearly of tiny objects nearby, they may use microscope-alike eye wear. These eye wear can work like microscope and help users see clearly of all such tinny objects.People who want to be more attractive than others with eyeglasses may have a try on make up glasses. These eye wear are designed in very special styles and can also be adjusted properly according to users' needs. Or there are also children frames, which can make users nice, calm and peaceful to look at.
It is true that some people often put their eyes at risk in particular situation- this is also why some of them have their eyes injured and vision damaged occasionally. For this, some protective safety eye wear are ideal alternatives. These safety glasses can offer wearers comprehensive vision protection.Of course, there are also eye wear than are particularly designed for professional purposes. For example, there are goggles for swimming. These eye wear can not only protect users' eyes, but also offer ideal vision clarity in the water.
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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