Therefore, the evaluation of a mine ventilation system security is an important practical significance.

因此，评判一个矿井通风系统的安全性具有重要的现实意义。

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The reliability of a mine ventilation system is for the safe production an important safety index of a mine.

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。

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In the optimization of a mine ventilation network, the boundary overstepping took place in Golden Section Search.

在复杂矿井通风网络优化计算中，发现了黄金分割法的越界现象。

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It is pitching a new ventilation system that would fill a mine with sensors, dampers and louvers along with variable speed fans that will send only the right amount of air to the mine tunnels.

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