常见例句双语例句Formulas are given in many mechanical manuals to calculate the tooth thickness at only the reference circle of worm and worm wheel.蜗轮蜗杆的分度圆齿厚在大部分机械手册中都给出了计算公式,但在其它任意半径处的齿厚计算很少有资料涉及。 返回 reference circle of worm