speedcopn.<俚>制止汽车超速行驶的警察
speedn.速度;迅速v.加速;急行
speed-grown poplar速生杨
speed reduction unit减速器
speed reducing motor减速电动机
speed sampling pulse速率取样脉冲
speed increasing box增速箱
speedlimiting device限速装置
speed of convergence收剑速度
speed distance curve速度距离曲线
speed - regulating调速
speed variation unit变速装置