Pitch circle is the reference circle from which all transverse spline tooth dimensions are constructed.

节圆是一个参考圆，花键的键齿的所有的横向尺寸都是以节圆为基础开始计算的。

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A reference circle trial generator is developed to provide a high precision movement for the reflector of laser tracker.

设计制造出一种标准圆轨迹发生器，可为标准反射镜的运动提供高精度的规定轨迹。

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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。

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All right. Now the hermeneutic circle, then, involves this reference back and forth between the entities that I've been trying to describe.

好，现在我们知道解释学循环，包括在我刚刚所说的,存在之间的穿梭。

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