英语词汇“down and up”的翻译、意思、用法、释义-英汉汉英双解词典

单词	down and up
释义	down and up adj.上下来回的往复的;双动的
随便看	chemical processing of phosphate rock chemical processing of potash ore chemical processing of salt chemical processing of silica chemical processing of sulfur mineral chemical processing of titanium mineral chemical processing of zinc mineral chemical processing plant chemical processing reactor chemical processing tank chemical process intensification chemical process kinetics chemical process modeling chemical process of mineral chemical process research chemical process safety Chemical process simulation system chemical process simulation technique chemical produced oxide coating chemical product CHEMICAL PRODUCT AND COMPANY IDENTIFICATION chemical product engineering chemical production chemical proportioner chemical proportioning pump