opening at... 地方有空缺openingn.开口；开始；张开；开幕；空缺adj.开头的动词open的现在分词.opening degree of valve阀门开度opening and flexibility开放性和广适性opening up individually单独开拓opening of aortic valve主动脉瓣开放openings in the ceiling顶板开孔opening balance account期初差额帐opening teaching system开放教学体系opening-up characters开放性opening of a laboratory开放实验室Opening and integration开放融合