机械专业英语词汇 ... voltage level 电压电平 voltage level test 电压[电平]试验，耐压[等级]试验 voltage-life curve 电压寿命曲线 ...
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Because of the low test current level used, a very sensitive voltmeter is required to measure the voltage drop, which is usually in the microvolt range.
由于所使用的测试电流很低，所以就需要非常灵敏的电压表来测量这种通常在微伏范围的电压降。
Shielding may also be applied to a conductor carrying a high level test voltage to prevent interference with nearby low level circuits.
承载高测试电压的导体也应该采用屏蔽，以防止与邻近的低电平电路发生干扰。
Whenthe leakage current reaches this level, there is no more availablesupply current to generate a greater test voltage.
当泄漏电流达到这水平时﹐火花机将再也不能有效输出电流来产生高的测试电压。
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