Based on the infrared spectrum absorption characterization of methane gas, the long optical distance differential absorption method for methane detection is studied.
基于甲烷气体的红外光谱吸收特性，研究了长光程差分吸收式甲烷气体检测的方法。
In the general method the absorption rate is found out by solving differential equations.
在一般方法中，使用了微分方程求解吸收速率。
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。
Differential optical absorption spectroscopy has become a widely used method to measure trace gases in the atmosphere.
差分光学吸收光谱法已经变成了测量大气中微量气体浓度常用的方法。
The present paper describes the new method of ozone measurement, dual differential absorption lidar (dual-DIAL).
文中提出了一种新的激光雷达测量臭氧的方法：双差分吸收方法。
Differential optical absorption spectroscopy (DOAS) has become a widely used method to measure trace gases in the atmosphere.
差分光学吸收光谱法(DOAS)已经成为测量大气中微量气体浓度广泛应用的方法。
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。
Using this method, minimum pollutant gas concentration formula is got by differential absorption lidar and Raman lidar, their comparison with ones in some literatures is made and shortage in...
把此方法应用到激光雷达中来，得出了差分吸收激光雷达和拉曼雷达探测污染气体最小浓度估算公式，并把它们与已有的估算公式进行了比较，指出了原有估算公式的不足。
Using this method, minimum pollutant gas concentration formula is got by differential absorption lidar and Raman lidar, their comparison with ones in some literatures is made and shortage in...
把此方法应用到激光雷达中来，得出了差分吸收激光雷达和拉曼雷达探测污染气体最小浓度估算公式，并把它们与已有的估算公式进行了比较，指出了原有估算公式的不足。
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