primary coolant

基本解释

When you have an event, the reactor is operating at full power, you blowdown the primary coolant which is hot,you start injecting emergency core cooling water which is cold.
当你进行的时候，反应堆就会用全部的动力,运行，你排放出初冷却剂,那是热的，你开始注入紧急核心冷却水,那是冷的。
Compared with that of Daya Bay Nuclear Power Plant, the reactor power of QS-II Nuclear Power Plant is decreased and the primary coolant system is changed from three loops to two loops.
秦山核电二期工程与大亚湾核电站相比，反应堆功率下降，冷却剂系统三环路变为两环路。
A new preparation technique is developed for making the low chloride nuclear grade resin by commercial resin. The chloride remained in nuclear grade resin may release to PWR primary coolant.
利用国产树脂制备出了核级低氯树脂，并对不同残余氯的该树脂在模拟PWR核电站一回路水质条件下的氯离子释放行为进行了研究。

Integral reactor systems -- including the reactor vessel itself, six steam generators, five primary coolant pumps, 12 isolation valves and more -- were stored outside for up to 18 months, exposed to highly corrosive tropical sea air and weather.
CENTERFORSECURITYPOLICY: A Chernobyl reminder just off our shores