汽车用车速表
Motor vehicles--Speed meters
最高允许车速
the maximum permissible train speed
商用车车厢
commercial vehicle cargo body
安全阀最大许用设定值
maximum allowable relief valve setting
安全许用应力
permissible safety stress
车辆最大容许速度
maximum permissible speed of car
电缆许用最小面积
needed minimum area of cable
二级煤矿许用乳化炸药
permissible emulsion explosives used in 2nd-class
钢材许用应力
allowable working stresses of steel
开通允许速度
operating allowable speed
临时占用许可证
temporary occupation permit