Development unit division and favorable area evaluation for joint mining coalbed methane

YANG Zhaobiao,LI Yangyang,QIN Yong,SUN Hansen,ZHANG Ping,ZHANG Zhengguang,WU Congcong,LI Cunlei,CHEN Changxiao

Fig. 1. Relationship between air-dried basis Langmuir volume and reflectivity of coal samples from eastern Yunnan and western Guizhou.