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。
The PTK crus prosthesis and that with silicone liner locked have different effects on suspension under different step speed.
PT K小腿假肢和带锁硅胶小腿假肢在不同的步速下行走对假肢的悬吊可产生不同程度的影响。
The control of A-A on-off frequency conversion step speed regulator by adopting model 8031 single chip computer is described.
本文介绍了8031单片微机对交-交选通有级变频调速器的控制。
ZK3-6/250 single stage drive electrical locomotive adopts step speed adjustment with the characteristics of easy operation, simple structure, reliable running and easy maintenance etc.
ZK3-6/250单级传动电机车采用有级调速，其特点为操作简单方便、结构简单、运行可靠、维护方便等。
ZK3-6/250 single stage drive electrical locomotive adopts step speed adjustment with the characteristics of easy operation, simple structure, reliable running and easy maintenance etc.
ZK3-6/250单级传动电机车采用有级调速，其特点为操作简单方便、结构简单、运行可靠、维护方便等。
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