齿轮传动

chǐ lún chuán dòng shì de yùn dòng zhuàng tài

齿轮传动式的运动状态

motion state of gear drive type

chǐ lún chuán dòng shù xué mó xíng jī chǔ

齿轮传动数学模型基础

the basis of the mathematics model of gear drive