基本解释[机械工程]卷筒外径英汉例句双语例句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.钻头外侧呈锥体形状，钻头外径大于或等于钻筒外径形成外凸。ip.comoutside barrel diameter更多例句词组短语短语outside diameter of barrel [机]辊体外径outside barrel diameter更多词组专业释义机械工程卷筒外径