diffuse reflectance spectroscopy分光: spectral; beam split光谱分析: spectrum analysis; spectral ...发光光谱分析: emi ion ectroanalysis激光光谱分析: laser spectral analysis; laser spectroscopy analysis; laser spectrum analysis荧光光谱分析: fluorescence spectral analysis; fluorescent spectroscopy; spectrofluorimetry下载手机词典可随时随地查词查翻译