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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Mine ventilation system is one of the life-safeguard system, its working reliability has special meaning.

矿井通风系统属于生命保障系统一类，其工作的可靠性具有特殊的意义。

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A new method was presented for evaluating rationality of uranium mine ventilation system using fuzzy mathematics.

本文提出了应用模糊数学评判铀矿井通风系统合理性的一种新方法。

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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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