Meanwhile in May 2009, the Chalk River reactor started leaking heavywater and was again shut down.
也是在2009年5月,乔克里弗反应堆开始出现重水泄露现象,被迫再次关闭。
2
However, because deuterium, in so-called "Heavy-Water," is used to moderate neutrons in some nuclear reactor designs, it is separated from regular water on a large scale.