英语词汇protective medium怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	protective medium
释义	protective medium 简明释义保护介质网络释义短语 1 double protective medium 双重保护介质双语例句 1 According to the different welding materials, if adopts the carbon dioxide gas or mixed gas to be the protective medium to carry out the welding. 根据焊接材料的不同，可采用二氧化碳气体或混合气体作为保护介质进行焊接。 2 Firstly, in this paper water absorption of concrete protective coatings hi different corrosive medium is studied. 本文首先研究了不同腐蚀介质下混凝土保护涂层的吸水行为。
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