6Transformation and Effects Analysis for Ventilation System Centralized Optimization in Xinxing Coal Mine16-19
13Predicting and Forecasting Typical Spontaneous Combustion of Lignit by Using Gases Analysis Methods32-34
16Features of Coal Seam Methane Preserving in No.2 Coal Mine in Xuandong and Preliminary Analysis for Drainage Efficiency40-41
17Preliminary Discussion on Technology Effects Preventing Methane Exceeding Limits in Upper Corners42-43