常見例句雙語例句Appropriate machining, rolling Rolling make quantitative, and ford All or variant processing, pumping rod or line stretching.適切削加工，做定量壓延滾牙性，用于卯合或變型加工，抽伸棒或線。Our company, integrating advanced concepts, has finished research and development for the new model of multi-function wearproof pumping rod centralizer.我公司綜合國內(nèi)外先進(jìn)理念，研發(fā)出全新模式的多功能耐磨抽油桿扶正器。qsk999888.blog.163.comThe control rod string which is consisted of pumping rod and controller is tripped into the release string.抽油桿與控制器組成的控制桿柱下入到丟手管柱內(nèi)，控制桿柱上部與桿式泵的進(jìn)油孔相連。 返回 pumping rod