梳形双光束光谱仪

comb type circuit comb type refiner double pass spectrometer automatic double spectrometer rolling comb type seedling puller double reinforced beam double beam crane beam grid spectrometer multiparticle spectrometer parafocusing spectrometer autocollimating spectrometer double beam mass spectrometer double-beam flame spectrometer double-beam spectrometer double-beam double focusing mass spectrometer double-beam double-focusing mass spectrometer double beam double-focusing mass spectrometer double-beam far-infrared Fourier spectrometer double beam electric-null infrared spectrometer optical null double-beam farinfrared spectrometer beam spectrometer two-beam interference spectrometer