Mirror test case of UV color when the sun UV discoloration.
测紫外线变色化妆镜遇阳光中紫外线时会变色。
The weak acid condition can cause the discoloration extent.
弱酸性条件会增加变色的程度。
Fluorosis can cause tooth discoloration or surface irregularities.
氟中毒会导致牙齿变色或表面缺陷。
I strongly suggest you wash it in cold water to prevent discoloration.
我强力建议你用冷水洗以防止褪色。
I strongly suggest you wash it in cold water to prevent discoloration.
我强力建议你用冷水洗以防止褪色。
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