英语词汇“maintenance study”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	maintenance study
释义	maintenance study 维持性学习
随便看	roll formed case roll formed shape roll former rollformer roll forming roll forming die roll forming machine roll-forward roll forward roll-forward procedure roll-forwards roll fours roll frequency roll gage roll gallows roll gang rollgang rollgang elevator roll gap roll-gap roll gap adjusting mechanism roll gap control roll gap indicator roll gap measuring instrument roll gap set 人看起小，马看起蹄人看起小，马看蹄走人眼不藏私人眼是把秤人眼是镜子人眼难哄。人着人死天不肯，天叫人死有何难？人睡如小死人矜节行人知其一，莫知其他。唾弃唾手唾沫唾涎唾液唾腺唾面自干唾骂唿唿哨