zài / chǐ / lún / chuán / dòng / zhōng / cóng / dòng / chǐ / lún / de / zhuàn / sù / yóu / zhǔ / dòng / chǐ / lún / jué / dìng

在齿轮传动中，从动齿轮的转速由主动齿轮决定。

In gear transmission, the speed of the driven gear is determined by the driving gear.