openURL开放链接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 NC system开放式数控系统Open and close捭阖open roadstead开放泊地Open Pore Foam开孔泡沫(塑料)open pan mixer敞口盘式混合器open classroom开放的课室； 自由学习的课室open tape reeln.开卷式录音带open separator敞口式分离机open condenser开式冷凝器open-shelves开架