Discharge valve should be closed after cutting off the electric motor. Cut off power first, then close discharge if the electricity is cut off suddenly during the running.

停车后应关闭排出阀。在运转中若突然停电，则应先断电源，后关闭排出阀。

youdao

The town is without electricity and the water supply has been cut off.

这个镇上已经断电停水了。

《柯林斯英汉双解大词典》

Make sure that the water and electricity are cut off when there is nobody in the house.

当无人在房子里时，要确保水和电是关着的。

youdao

Baliffs are due on Friday over unpaid council rates, the electricity is set to be cut off and the water has already been cut off.

BBC: Merthyr facing race against time