多级谐波齿轮传动 [机] multiple-stage harmonic gear drive
多机共轴齿轮传动 multi-engines geared drive
多级齿轮传动 step gear-driven
多轮传动
Multi-wheel drive
以上为机器翻译结果，长、整句建议使用 人工翻译 。
本文应用转化机构的基本概念分析了封闭式差动轮系，多自由度轮系和多重轮系的传动比、力矩和效率。
Based on the basic concept of transformed mechanism, transmission ratio, moment and efficiency of closed differential train, multiple freedom train and multiple train are analysed in this thesis.
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