基本解释[机械工程]轮冠至相错点距离词组短语短语crown n to crossing point 轮冠至相错点距离Front crown to crossing point 前锥齿冠至交错点crown to crossing point distance 齿冠到交点的距离crown to crossing point更多词组专业释义机械工程轮冠至相错点距离