基本解释[机械工程]侧投射面英汉例句双语例句The projecting lines are discussed by using the line of intersection in horizontal ( H ) plane, profile ( W ) plane and frontal ( V ) plane.并讨论相贯线在水平（H）面，侧立（W）面，正立（V）面上的投影线。profile projecting plane更多例句专业释义机械工程侧投射面