普通9号道岔,在尖端处的轨距为()。 ["1450mm","1445mm","1437mm","1435mm"]
ZL50装载机变矩器进口压为()。 ["A、0.65MPa","B、0.55MPa","C、0.56MPa","D、0.50MPa"]
09-32捣固车最大拨道力为()。 ["A、150kN","B、250kN","C、300kN","D、350kN"]
提速道岔道床应采用一级道砟,岔枕下应有不少于()厚度的清砟,砟肩宽度应不少于400mm,砟肩堆高由岔枕顶面往上100mm。 ["A.100mm","B.200mm","C.300mm","D.500mm"]
09-32捣固车作业运行时使用()制动。 ["A、风动","B、液压","C、电动","D、机械"]
提速道岔挡板前后离缝大于2mm及销钉帽内侧距滑床板边缘大于()时,应进行修理或更换。
提速道岔挡板前后离缝大于2mm及销钉帽内侧距滑床板边缘大于()时,应进行修理或更换。