其中电源提供风扇检测仪和 PWM风扇电源，可以在外部电源切断时，保存最近一次风扇测试资料；
The power source powers the detecting instrument and the PWM fan and makes it possible to save the last fan test data after the outer power supply is cut off;
许多航空公司已经在所有客舱内为乘客提供USB接口以及电源插头，新加坡航空和国泰航空就是其中的两家。
Carriers including Singapore airlines and Cathay Pacific are some of the many airlines that are already providing USB ports and power sockets on their flights for passengers in all classes.
看来他们终于成功了——将一条外部电源与其中一个机组的电力系统相连接，这将有助于输送所急需的冷却剂。
It appears that they have finally succeeded in reconnecting a power line to one of the reactors, which will help pump much-needed cooling water.
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