“stage transmission”的概念、定义、翻译、参考文献-科学参考

单词	stage transmission
释义	stage transmission Encyclopedia 工学变速器释 stage transmission有级变速器具有若干个不同传动比的变速器，在输入轴转速不变的情况下通过换挡使变速器在不同级别的传动比工作，实现输出轴转速分级变化。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。