For elementary colour paints with high pigments, use the evaluation photos below as a reference for evaluation.
为基本色漆，使用高色素的评价下面的照片作为参照进行评估。
Additionally, the well-known four colour problem and elementary geometry theorem-proving problem have been discussed.
同时，也对四色问题与初等几何定理证明作了简单的讨论。
Additionally, the well-known four colour problem and elementary geometry theorem-proving problem have been discussed.
同时，也对四色问题与初等几何定理证明作了简单的讨论。
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