核电站需要现场电源提供动力操作马达、阀门和各项控制系统的仪表，而且还为反应堆堆芯的冷却水系统提供电力。

Nuclear plants generally need ac power to operate the motors, valves and instruments that control the systems that provide cooling water to the radioactive core.

youdao

水冷式的冷却水塔，抽水马达，水源是否正常。

If the water cooling tower, pump motor and water are OK.

youdao

空心轴的设计使各种可能的裱褙，交流的理想加装冷却风扇马达。

Hollow shaft design allows for a variety of possible mountings; ideal to retrofit AC fan cooled motors.

youdao