friction wheel meaning in English

磨擦轮
摩擦轮

Variable speed friction wheel
变速摩擦轮
Circumferential friction wheel
圆摩擦轮
Alarm friction wheel
闹摩擦轮
Low speed koepe winding machines with friction wheel , for shafts and drifts ; braking system calculation formulae
装有摩擦轮的低速koepe传动钢索卷绕机.制动系统计算
The problems of the control and the matching between the winch and the friction wheels during up - going along the slope , horizontally passing over the hump and lowering down along the slope of the traction tracks for the elevator are discussed , from which the problems during the commissioning of the elevator are analyzed in detail as well
文中探讨了料坡式升船机沿斜坡上升、峰顶水平运行、沿斜坡下降等运行过程中的控制及绞车与摩擦轮的配合等问题，并对调试过程中出现的问题进行了详细的分析。