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.
爲(wèi)井下鑛山提供足夠多的時間進(jìn)行應(yīng)急処理，避免由此引起的淹鑛事故，保障了鑛山安全。 返回 drowned mine