应至少在每次换班时用直流电伏特计检查一次漏涂检测仪以确保其准确度。

The holiday detector shall be checked with a DC voltmeter at least once each shift to ensure accuracy.

youdao

应至少在每次换班时用直流电伏特计检查一次漏涂检测仪以确保其准确度。

The holiday detector shall be checked with a DC voltmeter at least once each shift to ensure accuracy.

youdao