In order to realize safety production in coal mine, ventilation system must be set up.
为了实现煤矿安全生产，各矿必须建立稳定的矿井通风系统。
Finally application instance of design and ventilation safety management in coal mine were shown.
最后给出了软件系统在矿井设计与通风安全管理中的应用实例。
And maintain the plant within the ventilation, to ensure the safety of staff.
并坚持车间内地通风，以确保工作人员地平安。
And maintain the plant within the ventilation, to ensure the safety of staff.
并坚持车间内地通风，以确保工作人员地平安。
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