Nuclear plants need power to operate motors, valves and instruments that control the systems that provide cooling water to the radioactive core.
核电厂需要电力去操作电机，阀门，和仪表，去操作控制提供冷却水到反应器内部的系统。
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.
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。
The laboratory evaluation for protection oil-gas formation is conducted mainly with related instruments to monitor the permeability change of the core.
保护油气层的室内评价工作主要是借助于有关仪器，测定入井流体对油气层损害后的渗透率变化情况。
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