in addition, the temperature change of coal body during coal and gas outburst process has also verified that it is thermopositive when coal absorbs gas, while it is decalescent with releasing gas.
此外,煤与瓦斯突出过程中煤体的温度变化也印证了煤吸附瓦斯放热和解吸瓦斯吸热这一物理现象。
the differential thermal curve of the lignite coal is similar to that of the bituminous coal in the two thermopositive peak values.