Speed variation of each roll by means of two potentiometers on the control cabinet. 控制面板上两个旋钮直接控制辊速度。
The speed of the opener is too high and it is the main reason of the fiber breakage in the forepart of the present card. 指出目前梳毛机的开毛辊速度过快,是造成纤维在预梳部分过份损伤的主要原因。