基本解释[机械工程]第二级膨胀英汉例句双语例句Reason of invalidation failure was analyzed on expansion joint of second stage exchanger of mixture hydrogen in semi-regenerative reformer.分析了半再生重整装置二段混氢换热器膨胀节失效破裂的原因。second stage expansion更多例句词组短语短语second stage expansion project 二期扩建工程second stage expansion更多词组专业释义机械工程第二级膨胀