ประโยคภาษาจีน : 中文句子 |
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jié lùn 结论 fú 氟 bǎo hù 保护 xī 膝 fáng qǔ 防龋 xiào guǒ míng xiǎn 效果明显 cào zuò jiǎn biàn 操作简便 shì hé 适合 tuī guǎng 推广 |
Conclusion Applying the protecting lacquer contained fluorin to prevent caries had a significant effect. |