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  2012, Vol. 30 Issue (1): 69-72    DOI: 10.3981/j.issn.1000-7857.2012.01.013
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Model Establishment for the City Air Quality Assessment Based on Improved Extension Theory with Varying Weights
ZHAO Xiaoliang1, QI Qingjie1, ZHOU Yang1, ZHENG Jiao2
1. College of Resource and Environment Engineering, Liaoning Technical University, Fuxin 123000, Liaoning Province, China;2. Institute of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China

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