Re - closing can check no voltage check the corresponding period.

重合闸有检无压和检同期功能.

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Make sure that the ac voltmeter shows no voltage.

确保交流伏特表显示无电压.

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Some charge pump circuits using no voltage process are recently reported.

本文提出了两种不用高压管且器件可靠的升压电荷泵新结构.

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In course of motor starting after no - voltage a malfunction fault of motor differential protection was analyzed.

分析了一起母线失电后快切装置动作时电动机起动过程中差动保护的误动事故.

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No voltage at motors.

马达无电压.

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