There are four. One of them is emergency generator.

四台. 其中一台是应发动机.

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Provide two independent means to start the emergency generator engine.

应急发电机应有两套独立的启动方法.

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Insulation of emergency generator room ( including A 60 insulation ).

应急发电机室绝缘 ( 包括应急发电机室A60绝缘 ).

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Automatic supply test of emergency generator.

应急发电机自动供电试验.

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They scarcely ever used the emergency generator.

他们几乎从不使用应急发电机.

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For use with emergency generator to lockout lag pump when operating with emergency power.

与应急发电机一起使用,采用应急电源在泵运行时关闭滞后泵.

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Manual start the emergency generator, to supply the power to emergency switch board.

手动启动应急发电机, 给应急配电板供电.

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The hospital has an emergency generator in case the electricity supply breaks down.

这家医院有备用电机以防停电.

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