Diffuse, huge clouds of gas and dust relatively close to us in our galaxy can be seen above and below this band.
在光带的上方和下方，我们可以观察到由气体、尘埃组成的弥散而又巨大的云团，这些云团在我们星系中相对距我们比较近。
The dissertation analyses the applicability of three models of gas radiation computation: the gray model, the narrow band model and the wide band model, and analyses the normal method of using them.
分析气体辐射常用的三种模型：灰体模型、窄谱带模型和宽谱带模型的适用性，以及这三种模型的常规使用方法。
Differential optical absorption spectroscopy (DOAS) makes use of the flue gas pollutant different optical absorption characteristic at the UV-VIS wave band to measure their average concentration.
差分吸收光谱法是利用气体污染物在UV - VIS波段对光有不同的吸收特性来测量其平均浓度。
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