The moves in chess are not only manifold, but involute.

下棋的走法不但多种多样，而且错综复杂。

We invent the spherical gear with ring involute tooth.

发明了渐开线环形齿球齿轮机构。

Cycloid was used to modify the involute tooth profile.

用摆线对渐开线齿轮齿形进行修形。

Involute Spline is one having teeth with involute profiles.

花键的键齿的齿形为渐开线形式的花键。

The standard involute cylinder gear is studied in this paper.

本文以标准渐开线直齿圆柱齿轮作为研究对象。