变速系统 meaning in English

speed control system

Electronic control transmission system on tr - 250 tadano crane
250吊车上的电控变速系统
Electromagnetic continuously variable transmission for vehicle
车用电磁耦合无级变速系统
Designing and experimental study of automated mechanical transmission
电控机械式自动变速系统开发及试验
Study on dynamic gear - shift law of automated mechanical transmission
机械自动变速系统动力性换挡控制规律
Structure and simulation of electromagnetic continuously - variable transmission system
电磁耦合无级变速系统的结构及仿真

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