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Terms for subject Hydroelectric power stations containing back up | all forms | in specified order only
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back-up overspeed governor附加超速保护装置
back-up protection后备保护
back-up pump start备用泵启动
back-up system后备继电保护
back-up water level回升水位
back-up water level壅高水位
built-up back pressure排放背压力