Analysis on Land Use Dynamic Change and Its Causes in Luanhe Valley of Inner Mongolia
内蒙古滦河流域土地利用动态变化及原因分析
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Study on Biodiversity of Higher Spore Plant of Area of Upper Reaches of Luanhe River
滦河上游地区高等孢子植物物种多样性研究
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天津引滦水的水质变化特征与生物预处理试验研究
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On water supply of Luanhe River Diversion Project and ways of water price reform
引滦工程供水与水价改革途径探讨
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