英语词汇density gradient tube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	density gradient tube
释义	density gradient tube 简明释义密度梯度管网络释义 1 ?密度梯度管 ... density gradient sedimentation 密度梯度沉降法 density gradient tube 密度梯度管 concentration gradient 浓度梯度 ... 短语 1 density-gradient tube 梯度管 ; 密度 2 gradient tube density determination 梯度管密度测定双语例句 1 If there is a bulk mixing of the layers of gas in the tube by mechanical stirring or because of a density gradient, mass transfer occurs primarily by the mechanism of forced or natural convection. 如果是受到机械式的搅拌或者是密度梯度发生了变化而使得管中有大量的分层的气体，那么传递就主要通过强制对流或自然对流而发生。
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