...矿井安全生产 [gap=949]Keywords : Handan-Fengfeng coal mining area；neotectonics；coalfield structure；mine safety production ...
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我希望他快点好起来 » I hope that he "quickly improves 矿井安全生产 » Safety production of mine 亲爱的珍：以为我非常的爱你，所以我愿意等你到永远 » Dear Jane: I really love you, I am willing to wait for you forever ..
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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.
矿井通风系统的可靠性是矿井安全生产的一项重要安全指标。
The reliability of a mine ventilation system is for the safe production an important safety index of a mine.
合理的支护形式是矿井安全生产的保证，也是经济效益提高的重要前提。
The rational support form is the guarantee of the mine safety production, is also the important premise of raising economic efficiency.
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