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基于主成分分析法的铜川市环境脆弱性研究
韩申山 史兴民 裴晓敏
The Environment Vulnerability Research of Tongchuan City Based on Principle Component Analysis
中国农学通报 . 2011, (1): 270 -274 .  DOI: 10.11924/j.issn.1000-6850.2010-2151