speedersn.摇把（speeder复数）speedn.速度；迅速v.加速；急行speed regulating handwheel调速手轮speed shifting fork spring变速叉弹簧Speed - driving too fast超速-驾驶速度过快speed-control servomotor调速伺服电动机speed at continuous rating持续制功率下的速度Speed up the aging process加速老化的过程speedometer flexible shaft速度计挠性轴Speed Governing Technology调速技术speed of rotation of motor电动机转速speed-shifting mechanism变速机构