放卷、复卷配装无级调速器，保证了放复卷过程纸面张力稳定平坦。
Unwinding and rewinding can be equipped with step-less speed-regulator to guarantee tension of paper stable, trim during rewinding and unwinding.
磁流变液(MRF)是一种新型智能材料，介绍了一种磁流变无级调速器(MRCVT)，对其恒转矩特性和动态响应进行了试验研究。
Magnetorheological fluid (MRF) is a new type of intelligent material, a type of MRCVT is introduced and some experiments about its dynamic response and constant torque performance are done.
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