speedwayn.机车的竞赛场;赛车运动;高速公路
speedn.速度;迅速v.加速;急行
speed - changing adjustment变速调节
speed regulating valve spring调速阀弹簧
speed control crystallization控速结晶
speed passage through customs快速通关
speed-governors of elevator电梯限速器
speed of cerebral circulation脑循环速度
speedometer two speed adapter[机] 速度计双速接头
speed fluctuation coefficient速度波动系数
speed adjustable screw feeder可调速螺旋给料机