back-up power supply的意思|示意

They are widely used in rescue or telecommunication facilities as mobile back-up power supply, in industrial mining, rural areas and oil fields as temporary emergency power supply.

应用于军事、救灾抢险或电讯设施，作为机动备用电源；应用于工矿、农村和油田，作为临时应急电源。

Power system protection work, when power lines were damaged or for other reasons the system back-up power supply is still able to work more than 24 hours, calls will be automatically recharged after.

系统有断电工作保护功能，当电源线路被破坏或由于其他原因断电时系统备用电源仍能继续工作24小时以上，来电后将会自动充电。

The quake and tsunami cut the supply of off-site power to the plant and diesel generators intended to provide back-up electricity to the cooling system.

这次强烈的地震和海啸毁坏了电厂的外部电源和以柴油为动力的后备电源。这些电源是用于和电站紧急情况下为冷却系统提供电力供应的电源。

Officials also said they were hoping that they would restore "as soon as possible" the power supply to the plant, which is needed for the cooling system and back-up generators.

有官员表示他们寄希望于能够尽快恢复电站的动力供应，以便能够冷却系统和备用发电机。

Three load side terminals (4) and power supply side terminals (5) are respectively arranged along the up-down direction on the front and the back of the decoupler casing (2).

分别在断开器壳体(2)的前面和背面上在上下方向排列了三个负荷侧端子(4)和电源侧端子(5)。

Normal power supply with automatic charge for the back-up power.

供电正常用自动为后备电源充电。