Study on variation characteristics and evaluation of air anion concentration in urban parks——Taking Shuangyong park as an example
Liang Zhu, Guan Helin, Liu Hairong, Ji Yuanyuan
Journal of Tianjin Agricultural University . 2024, (6): 44 -50 .  DOI: 10.19640/j.cnki.jtau.2024.06.008

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