The density control of gas and coal dust is done through optimal allotment of the ventilation quantity in the coal mine well.
煤矿井下瓦斯和煤尘的浓度控制是通过煤矿井下通风量的优化分配实现的，是实现煤矿安全生产的关键环节。
The density control of gas and coal dust is done through optimal allotment of the ventilation quantity in the coal mine well.
煤矿井下瓦斯和煤尘的浓度控制是通过煤矿井下通风量的优化分配实现的，是实现煤矿安全生产的关键环节。
应用推荐