变速传动装置 variable speed drive ; variable gearing ; variable speed gear ; variable-speed drive device

自动变速装置 [机] Automatic transmission

无级变速传动装置 [机] vari-speed drive ; fully adjustable speed drive ; stepless drive ; speed drive

快速起动装置 QOS Quick Exhaut Valve ; QEV ; quick exhaut valve

正无级变速传动装置 positive infinitely variable driving gear

增速传动装置 step-up gear ; multiplyinggear

自动速度调节装置 auto speed control device

发动机缓速装置 Engine retarder

手动变速装置 manual gear shifting