矿井安全 mine safety
- 虽然矿井安全已极大改善,矿工的家属们仍然担心发生最糟糕的事情。
Though mine safety has much improved, miners' families still fear the worst. - 井下涌水是危及矿井安全的重要因素。
Water pouring is an important factor endangering mine. - 粉尘严重威胁矿井安全生产和职工身体健康。
Mine dust seriously threats the mine safety production and the staff health.
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