Before the tsunami hit, the cooling system was operated by diesel generators in the plant [to compensate for] a loss of external power sources after the earthquake.

在海啸到来之前，核电站里的冷却系统是由柴油发电机发动的，[为了补偿]地震后外部能源的缺损。

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Such a system requires power to pump the coolant, but can be operated indefinitely.

这种制度要求的权力，泵冷却剂，但可以经营下去。

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According to an initial investigation, a sudden loss of power caused the signal system to fail, forcing the trains to be operated manually, Shanghai Shentong Metro Group Company said in a statement.

上海申通地铁集团公司在一次声明中称，根据初步排查，电力突然中断致使地铁运营信号系统失灵，导致不得不对列车实行人工调度。

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Power-operated curtains provide privacy for the rear passengers and together with an innovative color-changing interior lighting system create a serene atmosphere.

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