问题:RM80型清筛机的换挡手柄只有在()时,才能在三通阀“区间运行”...
Friday, September 16, 2022
Wednesday, September 14, 2022
问题:在电气化区段,分相绝缘器前方()处设置特殊断点标。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Wednesday, September 14, 2022
问题:允许速度υmax>160㎞/h正线,60kg/m钢轨轨头侧面磨耗...
Friday, September 16, 2022
问题:已知某曲线超高120mm,最高速度为80km/h,该曲线缓和曲线...
Saturday, September 17, 2022
Friday, September 16, 2022
Saturday, September 17, 2022
问题:列车在何种情况需进行制动机简略试验(试风试闸)?...
Friday, September 16, 2022
Wednesday, September 14, 2022
问题:在曲线上布置缩短轨,在内股缩短量超过标准缩短量时,布置一根缩短轨...
Wednesday, September 14, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:脚手架的荷载每平方米不得超过2700N,脚手杆间距不应大于()m...
Friday, September 16, 2022
Thursday, September 15, 2022
问题:较小的探头晶片尺寸发射的超声波束,其远场覆盖面积()。...
Friday, September 16, 2022
问题:当列车密度大时,隧道通风宜优先采用洞口风道式通风。...
Friday, September 16, 2022
问题:RGH20C型道岔打磨车驾驶室前面板上的锁闭按钮的作用?...
Friday, September 16, 2022