differential optical path loss 光通道损耗差 ; 光路径损耗差
With the method of differential optical absorption spectroscopy(DOAS), aerosol along the light path is measured with a flashlight source.
介绍了一种基于闪烁氙灯光源、利用差分光谱吸收（DOAS）技术监测大气气溶胶的新方法。
With the method of differential optical absorption spectroscopy (DOAS), aerosol along the light path is monitored and its size distribution is measured with double optical path method.
介绍了利用双光路差分吸收光谱(DOAS)技术监测大气气溶胶并反演其粒谱分布的新方法。
SANOA long-path differential optical absorption spectroscopy system is used to monitoring SO2, NO2 concentration in air automatic monitoring sub-station.
SANOA长光程差分吸收光谱监测系统，适用于空气自动监测子站SO 2、NO2的测量。
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