傍山隧道
- 网络tunnel on valley line; tunnel adjacent to mountain
傍山隧道傍山隧道
tunnel on valley line
... 越岭隧道 watershed tunnel 傍山隧道 tunnel on valley line 不良地质隧道 tunnel in unfavorable geological conditions ...
tunnel adjacent to mountain
傍山渠道,canal close to... ... ) canal close to mountains 傍山渠道 ) tunnel adjacent to mountain 傍山隧道 ...
1