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。

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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