The central work of the evaluation lies in the evaluation of the security and stability of the ventilation system of mine.
矿井通风系统安全评价的中心工作就在于对矿井通风系统的安全性和稳定性进行评价。
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。
The central work of the evaluation lies in the evaluation of the security stability and reliability of the ventilation system of mine.
矿井通风系统安全评价的中心工作就在于对矿井通风系统的安全性、稳定性和可靠性进行评价。
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