词汇	chain sheave
释义	chain sheave 链卷筒,链滑轮
随便看	teaching principal teaching principle Teaching Principle of Cognitive Strategy teaching principles teaching principles of physical education teaching princple teaching priority teaching prngress teaching probation teaching problem teaching problems teaching procedure teaching procedures teaching process teaching process adjustment teaching process and procedure teaching process appraised teaching process evaluation teaching process improvement teaching procession teaching process management teaching process of school PE teaching process optimization teaching production teaching-production-research combination