- single-beam photoelectric colorimeter
- 单: singular number fate; destin ...
- 光束: light beam a surname
- 光电: photoelectricity
- 光电比色计: electrophotometer; optimeter; photelometer; photocell colorimeter; photocolorimeter; photoelectric chromatometer; photoelectric colorimeter; photoelectric colourimeter; photoelectrical colorimeter; photoelectrometer; photolometer
- 便携式光电比色计: portable photoelectric colorimeter
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