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[期刊论文] 作者:LI Yong-jun,仲海洋,, 来源:冶金经济与管理 年份:2008
已将提高中国钢铁行业的产业集中度作为目前中国钢铁行业的一项重要任务.中国钢铁产业在中国经济中的特殊地位决定了中国钢铁产业集中度与中国经济体制改革进程、经济环境及...
[期刊论文] 作者:LI Yong-jun,PENG Su-ping,LI Pei-quan,LIU Deng-xian,LIAN Hui-qing, 来源:煤炭学报(英文版) 年份:2008
Huainan coal field as main object, investigation of Karstic hydrogeological conditions were developed in Huainan structureal unit, and the basic conditions, features and rules of Karstic growth were summarized. Geology background and causes......
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