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