Both of them could now see the wheel well wedged between the rails and the uneven trackbed.
他们现在可以看见车轮卡在铁轨和不平的道床中间。
2
Elastic monolithic trackbed was used for East Qinling Super-long Tunnel for its good elasticity, less maintenance and low cost.
新建铁路东秦岭特长隧道采用弹性整体道床轨道基础，该基础弹性好，减少了线路维修工作量，降低费用。
3
The crack at the middle of the trackbed has more effect on dynamic bending stress of trackbed and dynamic stress of subgrade than crack at other location.