Double line railway 双线铁路
double line railway tunnel 双线铁路隧洞
a double-track railway line 双轨铁路线
Proportion of double line railway 铁路复线率
double-line railway 双线铁路
railway double line tied 铁路双线系杆
double-line railway bridge 双线铁路桥
For investigating the air pollution in double line railway tunnel by electric traction, we tested the air condition in Jundushan tunnel.
为了解电力牵引的双线铁路运营隧道空气污染状况，选择军都山隧道进行现场测试。
Using double layer container transport is an effective approach to reduce intense transport capacity of main railway line in China and decrease container transport cost.
采用双层集装箱运输是缓解目前我国铁路主要干线运输能力紧张状况、降低集装箱运输成本的有效途径。
Until now the bridge is the longest span in the continuous rigid frame double line railway bridge in our country.
该桥是目前我国最大跨度的预应力混凝土连续刚构铁路双线桥。
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