来自电网的污染主要表现为以下几种： 1．电压浪涌（power surges）指持续时间为一个周期至数个周期的电压变化，市电电网输出电压有效值大于额定值l 10％的现象151，比如重型设备的开关机，由于电网...
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The tugboat could draw extra power from the battery when full-power surges were needed.
当需要全功率激增时，拖船可以从电池获得额外的电力。
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It protects PCB from power surges from external power supply.
它从电源保护电路板由外部电源浪涌。
All these power surges and these crazy service interruptions.
这些电力波动，疯狂的服务中断。
Some customers may experience longer outages if power surges cause equipment failure during the restoration process.
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Gym owners got instructions to disconnect every piece of workout equipment from the wall to prevent damage during power surges.
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Circuit boards are double-insulated to protect against power surges, and there are backup power supplies that can be switched out on the fly.
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