open pitadj.露天采掘的openadj.开着的；开放的；公开的v.打开；张开；展开；摊开；开始(某事物)；开张；营业；以…开头；宣布启用n.户外；公开open resonant microwave moisture sensors开路同轴谐振腔OPEN CIRQUE-TAPER EXPANSION BUSH JOINT开口锥面胀套联接open network service system architecture开放网格服务体系结构open-type switchgear and control device敞开式成套电器open-graded large stone asphalt mixture开级配大粒径沥青碎石混合料Open dislocation of tarsometatarsal joint跗跖关节开放性脱位open-width scouring-bleaching machine平幅洗漂机open-reel instrumentation tape recorder开盘式磁带录音机Open System Interconnection Protocol Suit[计] 开放式系统互连(OSI)协议组open-delta ground potential transformer[电] 开角接地比压器