分光测定 meaning in Chinese

spectral photometry
spectroscopic measurement

Modified starch - determination of hydroxypropyl content - method using proton nuclear magnetic resonance spectrometry
改良淀粉.羟丙基含量的测定.质子核磁共振分光测定法
Methods for analysis of oilseed residues - simultaneous determination of oil and water contents - method using pulsed nuclear magnetic resonance spectroscopy
油料种子残留物的分析方法.油和水含量的同步测定.脉冲核磁共振分光测定法