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並前往https://www.globalmethane.org/expo-docs/india10/postexpo/coal_shengchu.pdf

Great Potential for CBM/CMM Recovery and Utilization and ...

Coal mine methane emissions has been increasing with increased coal output, emitting 20 billion m3 in 2008. ） 2. Coal mining and CMM emission in China. Page 9 ...

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