open by以 ... 开始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 space ratio城市绿地率open-wire link明线链路open air theater露天剧场open-cell foam开孔沫塑料open autocracism开明专制主义open-NC system开放式数控Open outsourcingn.开放外包服务open cooperation开放合作open fluid field开放流场open chain relay开链继电器