drowned mine
常見例句
- The establishment of the water sump provides enough time for emergency treatment for underground mine, which can avoid the people drowned and trapped so as to ensure the safety of mines.
為井下礦山提供足夠多的時(shí)間進(jìn)行應(yīng)急處理，避免由此引起的淹礦事故，保障了礦山安全。 返回 drowned mine