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 maths problems数学开放题
opening circuit switch断路器
opening a bank account开立银行存款户
opening teaching method开放式课堂教学法
opening on flange plate翼缘开孔
Opening Degree of Trade贸易开放度
opening for an engineer工程师职位空缺
opening of laboratories实验室开放
Opening-reinforcement开孔补强
Opening stiffening ribs开口加劲肋