They are aimed at either cleaning the water in the primary system, providing separate shutdowncooling functions, water chemistry, charging and volume control, makeup water.
它们的目标是清理主系统的水，提供分离的停止，冷却的功能，水化学，装料及容量控制，补充水。
2
But even after shutdown, there is residual heat that needs to be drawn off by cooling water pumped through the reactor core, and that’s where the trouble came.
但是即便终止之后，依旧有余热存在，需要冷却水泵抽水注入反应堆芯将热量散去，这也是问题所在。
3
The typical Component Cooling System is used during all phase of plant operation, including shutdown and post-accident.