The apparatus consists of the standard color plate, optical lens, the light source was observed, colorimetric tube.

本仪器由标准色盘、观察光学镜头、光源、比色管组成。

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The apparatus consists of the standard color plate, optical lens, the light source was observed, colorimetric tube.

本仪器由标准色盘、观察光学镜头、光源、比色管组成。

youdao