In low-voltage work, contact the general-damping device submerged in liquid, their contact attachment Film, increased contact resistance, so that contact can not work effectively, when the current serious erosion, photoelectric signal pressure gauges used non-contact Signal switching, no arc, no contact Erosion phenomenon, the long life and good switching characteristics.
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A special shape of collector is designed in order to reduce contact resistance and non-uniformity of the current; as a result the total current density in the device is increased.
为了减小器件的接触电阻和电流的非均匀性，使用了独特形状的集电极，总的电流密度也因此提高。
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.
试验表明：经过表面淬火的铸钢和经过贝氏体淬火的球墨铸铁，其接触疲劳寿命和耐磨性大幅度提高。
Often, the purpose of the contact resistance test is to determine whether contact oxidation or other surface film buildup has increased the resistance of the device under test.
通常，测试接点电阻的目的是确定接触点氧化或其它表面薄膜积累是否增加了被测器件的电阻。
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