Steam within the primary loop, now no longer circulating with the water, rises.
主回路中的蒸汽，不再同水一起循环，而是升腾起来。
2
SCAS is the source term code to calculate steam activation products in secondary loop of reactor, which is developed by Nuclear Power Institute of China.
SCAS是中国核动力研究设计院编制的反应堆二回路蒸汽活化产物源项程序。
3
Soda mixture after separation in drum, drops water through the pipe into the loop, and saturated steam into the overheating system, heating to a certain degree of superheat steam.