基本解釋礦井巷道英漢例句雙語例句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(diǎn)。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礦采空區(qū)的處治為實(shí)例，對(duì)該工程的處治效果予以分析并評(píng)價(jià)。mine tunnel更多例句