Traditionally, diesel oil-based generators, storage battery, dry battery and emergency lighting equipped Ni-Cd battery are always used as standby emergency power supply.

以往经常用自备柴油发电机组、蓄电池、干电池和镍镉电池应急灯作为应急备用电源。

youdao

Beijing Electric Power Co. said it had 3,000 workers on standby in case of emergency.

北京市电力公司说，已经安排3,000人在岗值班，以应对突发情况。

youdao