(页面存档备份,存于互联网档案馆) Photoacoustic spectroscopy in tracegas monitoring [2](页面存档备份,存于互联网档案馆) Photoacoustic spectrometer for tracegas detection based on a Helmholtz Resonant
使用|accessdate=需要含有|url= (帮助) LI B; WANG H L; XU Y Y; et al. Reduction of trace elements in flue gas by wet desulphurization facilities in coal-fired power plants