短語詞組短語chain -reacting amount 鏈反應數(shù)量amount chain -reacting 鏈反應數(shù)量Pile chain -reacting 鏈反應堆sphere chain -reacting 鏈反應球region chain -reacting 活性區(qū)system chain -reacting 鏈反應系統(tǒng) 返回 chain-reacting