当你切断电流，电磁场就消失了。

And when you turn the current off, the magnetic field collapses.

youdao

修理时，要切断电流。

Turn off the current while making the repairs.

youdao

过电流保护装置：试样击穿时在0.1S内切断电源。

Over current protection device: when the sample breakdown in the 0.1s cut off the power.

youdao

过电流保护装置：试样击穿时在0.1S内切断电源。

Over current protection device: when the sample breakdown in the 0.1s cut off the power.

youdao