名词
中文翻译：Unknown
同义词：
['coloration proof', 'color verification']
例句：
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3. 例句：1. The color proof of the painting is in the frame.
这幅画的颜色证明在框里。
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2. The color proof was lost during the move.
搬家时丢失了颜色证明。
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3. The artist used color proofs to ensure the colors on the canvas matched.
艺术家使用颜色证明来确保画布上的颜色与原作相符。