论文部分内容阅读
The National Development and Reform Commission approved the construction of the Duanshi (Shanxi) - Boai (Henan) coalbedmethane transmission pipeline project in August 2008.The pipeline
The National Development and Reform Commission approved the construction of the Duanshi (Shanxi) - Boai (Henan) coalbed methane transmission pipeline project in August 2008. The pipeline