根据锁相环的原理，使用反射式光电传感器实现了系统的颜色识别。
According to the theory of phase-locked loop, we use reflected photoelectric sensor to carry out the color recognition.
前言： 《建筑涂料色卡》是继《 漆膜颜色标准样卡》之后的又一项涂料色卡标准。简述了该标准的设计原理、标准结构、制作工艺和使用方法。
"Archtectural Coatings Color Card" is another coatings color card standard after Film Color Standard Sample Card, the design principle, structure, fabrication process and usage are sketched.
前言： 《建筑涂料色卡》是继《 漆膜颜色标准样卡》之后的又一项涂料色卡标准。简述了该标准的设计原理、标准结构、制作工艺和使用方法。
"Archtectural Coatings Color Card" is another coatings color card standard after Film Color Standard Sample Card, the design principle, structure, fabrication process and usage are sketched.
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