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
Thursday, September 15, 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:板料受拉时,铆接件若采用搭接,铆钉在()个截面上受剪力。...
Thursday, September 15, 2022
Friday, September 16, 2022
问题:在电气化铁路区段使用架空索道或绞车时,应先做好调查研究,其钢丝绳...
Wednesday, September 14, 2022
Friday, September 16, 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
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
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Wednesday, September 14, 2022
问题:08-32捣固车的捣固装置可以实现内侧捣固镐的()夹持动作,以适...
Saturday, September 17, 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
问题:道口栏木的设置应距外股钢轨不小于3m;栏木距地面应为1.0-1....
Thursday, September 15, 2022
问题:混凝土枕位置要正确,必须与轨道中心垂直,间距偏差及歪斜在正线、到...
Friday, September 16, 2022
问题:气缸盖螺栓是紧固气缸盖和气缸体的连接件,一般用优质合金钢制造。...
Thursday, September 15, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022