Direct fitting measurement of gas content in coalbed and selection of reasonable sampling time

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In this study, we selected 9 typical coal samples with different metamorphic grades as the study subjects,measured their initial 30-min gas desorption at 30℃ and different pressure using a self-developed gas adsorption/desorption device. Based on the char
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The main method of casting coal spontaneous combustion is prediction of index gases, with carbon monoxide (CO) commonly used as an index gas. However, coal spon