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应用广义可靠性理论分析了溥煤层采区生产系统，介绍了顺拉工作面和对拉工作面能力有效度的计算方法，认为能力有效度能更全面反映采区生产系统的运行状况。
The generalized reliability theory is used to analyze the production system of coal seam mining area in Pu coal seam. The calculation method of the effectiveness of the surface of the pull seam and the pull surface is introduced. It is considered that the capacity effectiveness can more fully reflect the operating conditions of the production system in the mining area.