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1·According to the principle of profiling machining of involute spherical gears, this paper designs the accurate involute profile curve of its finger milling-cutter.

根据渐开线球齿轮的仿形加工原理，设计一种具有渐开线齿廓的指状铣刀。

2·We invent the spherical gear with ring involute tooth.

发明了渐开线环形齿球齿轮机构。