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-varying Jeffcott rotor变速Jeffcott转子speed increase increasing gear增速齿轮Speedway-surface temperature路面温度speed-altitude trim position速度高度配平位置speed sensitive switch control速度敏感开关控制Speed Video to Audio Converter视频转音频speed overned induction clutch速度调节感应离合器speed-raising reconstruction提速改造Speed and load control circuit转速及负载控制回路Speed of knock-out urn piston顶出缸活塞速度