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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
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