阐述了机床有级变速传动系统的理论设计过程与设计方法，简要介绍了其设计步骤。
This paper deals with the theoretic design process, methods and procedures of machine tools' step speed drive system.
阐述了机床有级变速传动系统的理论设计过程与设计方法，简要介绍了其设计步骤。
This paper deals with the theoretic design process, methods and procedures of machine tools' step speed drive system.
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