optical colourimeter 光学色度计

colourimeter with lamp 带灯色度计

colourimeter tube 比色管

grating light colourimeter 光栅光比色计

Colourimeter method 测色仪法

disc colourimeter 盘式比色计

color meter colourimeter 比色计

photoelectric colourimeter 光电比色计

flowing colourimeter 流动比色计