mine tunnel
常见例句
- It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.
穿越富水砂层一直是浅埋暗挖隧道的难点。 - Combined with the treatment example of some expressway tunnel crossing mined-out region, the paper analyzed and evaluated its treatment effects.
以某高速公路隧道穿越煤矿采空区的处治为实例，对该工程的处治效果予以分析并评价。 返回 mine tunnel