open set开放集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 systems management开放系统管理open frame tool carrier双梁通用机架open-book examination开卷考试Open distributed system开放分布系统openhearted and upright胸怀磊落Open fracture of finger指开放性骨折open management pattern开放式管理模式open season for hunting狩猎期open circuit experiment开路试验open-topped limousine敞蓬轿车