threshold mass是什么意思 threshold mass怎么读
threshold mass的用法和样例
- The same ideas of critical size and critical mass apply to bombs.
同样的临界尺寸概念和临界质量概念适用于原子弹。 - A chain reaction can be initiated by inserting more and more fuel elements into the reactor core until the critical mass is attained.
只要在反应堆中加入越来越多的燃料并且一直加到临界质量为止，就可以发生连锁反应。
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