drowned mine
常见例句
- 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.
爲井下鑛山提供足夠多的時間進行應急処理，避免由此引起的淹鑛事故，保障了鑛山安全。 返回 drowned mine