精选优质文档-倾情为你奉上机械工程专业英语测验题(18-22)将下列词组译成汉语the base circle（基圆）the pitch curve（啮合曲线）the contact force（接触力）the intermittent motion（间歇运动）the common normal（公法线）the conjugate profiles（共轭齿廓）the cycloidal profiles （摆线齿形）the involute profiles（渐开线齿形）the spur gear（直齿轮）the herringbone gears（双螺旋齿轮）the face gear（端面齿轮）the radial distance（径向距离）the addendum circle（齿顶圆）The tooth thickness（齿厚）the tooth space（齿间隙）the cap screws（螺钉）the setscrews（固定螺丝钉）the engineering g
