英语语法分析

GEARMASTER PGP oils are used in high-load industrial gear systems such as spur gears, bevel gears, epicyclical gears and worm gear pairs.

油都用在高负荷工业齿轮系统，如直齿圆柱齿轮，锥齿轮，行星齿轮和蜗轮副。

The complicated structure of the epicyclical gear train with multidegrees of freedom and planet carriers could be predigested into the topological graph by adopting the knowledge of graph theory.

利用图论知识，可将多自由度多行星架周转轮系的复杂结构简化为拓扑图。