At the same time, liquid sodium is much less corrosive to pipes than hot water.

与此同时，液态钠对管道的腐蚀性要比热水小得多。

It replaces the liquid water that normally courses through the core with hot, liquid sodium (natrium, in Latin).

它用炙热的液态钠(拉丁文是：natrium)取代了通常流经核心的液态水。