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Healthy Yellow River’s essence and indicators
作者单位:Department of International Cooperation,Science and Technology,Yellow River Conservancy Commission,Zhengzhou 450003,China
摘    要:For thousands of years, people have been trying to promote benefit and abolish harm to the Yellow River by means of various activities such as flood control and water abstraction. However, after the last decade of the 20th century, it was noticed that the…

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