opencutn.露天开采的矿山adj.露天开采的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 convention开放的代表大会open out a mine开发矿藏open literature公开(的)文献open belt drive开口皮带传动open air drying露天干燥open subroutine开型子程序,直接插入子程序open a door for向…开门open-equation开放方程open correction直视矫正手术open expression外显性