openairadj.野外的(露天的)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openly confronting公开对峙型Open and honest.公开的和诚实的open-dle forming开放成形open fuel injector开式喷油器open-air theatre露天剧场open lens aperture发散透镜孔径open throat shears开式剪切机open-river stage畅流河道水位open-door system[经] 门户开放制度open flow capacity敞喷能力