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Visual simulation of regional development differentiation in Beijing-Tianjin-Hebei Metropolitan Regi
[期刊论文] 作者：LIU Yanhua,XU Yong,GUO Tengyun,
来源：黑龙江科技学院学报 年份：2013
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
Metropolitan resources efficiencies, change trends and causes in China under the goal to build an in
[期刊论文] 作者：GUO Tengyun,HE Shujin,DONG Gua,
来源：地理学报（英文版） 年份：2004
The metropolitan resources comprehensive efficiencies (also called comprehensive technical efficiency,short for CTE,thereafter),change trends and causes are inv...
Metropolitan resources efficiencies, change trends and causes in China under the goal to build an in
[期刊论文] 作者：GUO Tengyun,HE Shujin,DONG Guanpeng,
来源：黑龙江科技信息 年份：2011
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