Procedure regarding testing and retesting of color assessors must be followed as specified by Muns-ell procedure.

测试与复测的步骤须按照特定的孟塞尔流程。

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Procedure regarding testing and retesting of color assessors must be followed as specified by Muns-ell procedure.

测试与复测的步骤须按照特定的孟塞尔流程。

youdao