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Biological technology and environmental protec-tion. Feng Y S. Journal of Yuzhou University(Natural Sciences Edi-tion) . 2003
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The situation,problems and ways out of resources problems in China. Feng F. China Development Observation . 2005
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Developing 3S technology to promote agricultural modernization. Yan T L. Journal of China Agricultural University . 2005
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Circular economy:21 century’s new economy. Zhu D J. Review of Theory . 2005