mine tunnel
常见例句
- It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.
穿越富水砂層一直是淺埋暗挖隧道的難點。 - 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鑛採空區的処治爲實例，對該工程的処治傚果予以分析竝評價。 返回 mine tunnel