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 of the lens镜头的孔径, 镜头的光圈opening in flat head平盖开孔,在平板封头上的开孔opening to the world对外开放Opening--sharing开放共享opening in the hedge树篱上的孔opening bulb turbine开口型灯泡式水轮机opening laboratories实验室开放Opening displacement张开位移Opening of spikelets开颖opening for drainage排水巷道