single beam speotrophotometer

... singing 蜂鸣，振鸣 single beam speotrophotometer 单光束分光光度计 single channel blown balloon 单道鼓气球 ...

 beam spectrophotometer

chromatogram spectrophotometer 色层谱分光光度计 ; 色谱分光光度计 beam spectrophotometer 单光束分光光度计 mass spectrophotometer 质谱分光光度计 ; 质谱仪 ..