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通过对张庄矿通风系统改造试验前后各种指标的分析 ,证明衰老矿井合理集中生产系统 ,对提高通风系统安全可靠性与经济效益具有重要意义
Through the analysis of the various indexes before and after the renovation test of Zhangzhuang Mine Ventilation System, it is proved that the reasonably centralized production system of aged mine is of great significance to improve the safety, reliability and economic benefits of ventilation system