| 1. | This kind of toy is mean for preschool children 这种玩具专为学龄前儿童制造的。 |
| 2. | Visual function development in preschool children 学龄前儿童视觉发育的研究进展 |
| 3. | Investigation on visual function of preschool children 学龄前儿童视功能发育状况调查 |
| 4. | Middle and long stereoscopic evaluate of preschool children 学龄前儿童中远距离立体视测定 |
| 5. | Investigation of clinical dental caries among preschoolers 口腔门诊学龄前儿童龋病调查分析 |
| 6. | Nutrition status of preschool children in shanghai urban area 上海市区学龄前儿童营养状况调查 |
| 7. | A study on physic status of preschool children in chengdu 成都地区学龄前儿童形态发育现状研究 |
| 8. | Investigation of eyesight status among 1 866 preschool children 学龄前儿童1866名视力状况调查分析 |
| 9. | Survey of health education requirements for pre - school kids ' parents 学龄前儿童家长健康教育需求调查 |
| 10. | Epidemiological study on unintentional injuries in preschool children 学龄前儿童意外伤害流行病学调查 |