基本解释圆孔英汉例句双语例句Yield of slit powder injection was higher than round orifice powder injection.狭缝喷粉的有效利用率高于圆孔喷粉;211.103.157.156round orifice更多例句词组短语短语round orifice plate 圆孔板round orifice更多词组