WU Zi-yang, XIE Pin-hua, XU Jin, LI Ang, ZHANG Qiang, HU Zhao-kun, LI Xiao-mei, TIAN Xin. Study on the Distribution of NO2 Slant Column Density in Atmospheric Boundary Layer of Hefei City Based on Imaging Differential Absorption Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2020, 40(3): 720