%0 Journal Article %T 永煤集团挖“富矿” 进军聚甲醛 %J 洁净煤技术 %D 2008 %U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=73554e93-38d7-456a-af43-8680d52ade82