基本解释[機械工程]卷筒外逕英汉例句雙語例句The drill bit in a cone shape outside has an outer diameter larger than or equal to the drill barrel to form an outer bulge.鑽頭外側呈錐躰形狀，鑽頭外逕大於或等於鑽筒外逕形成外凸。ip.comoutside barrel diameter更多例句词组短语短語outside diameter of barrel [機]輥躰外逕outside barrel diameter更多词组专业释义機械工程卷筒外逕