We reviewed in this paper the theory of diffusing-wavespectroscopy(DWS) and its usual experimental set-up in detail.
详细介绍了扩散光谱（DWS）技术的基本原理及其常见的实验方法。
2
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。
3
We report the Doppler shift of Na spectroscopy changing with the slow wave factor in a slow wave microwave field the reason of the phenomenon is discussed.