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[21] [21] Foundation item: The National Natural Science Foundation of China (Nos.41375016, 91337103, 41576108)

          LIU Cheng, MING Hai, WANG Pei, et al. Tibet Nagqu and Beijing suburb of tropospheric aerosol micro pulse laser radar measurement［J］. Acta Photonica Sinica, 2006, 35(9): 1435-1439.