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1·RU 2505是光亮型聚氨酯光油，用于革的顶层涂饰。
RU 2505 is a polyurethane polymer with high shine for top coat.
2·整体的，2505名儿童有档案明确记载或可疑的胎记。
Oerall, 2505 children had a documented definite or suspected birthmark.
3·整体的，2505名儿童有档案明确记载或可疑的胎记。
Overall, 2505 children had a documented definite or suspected birthmark.