... rural primary middle school 农村初级中学 Higher primary normal school 高等初级师范学校 primary-school-agegroup 小学学龄儿童 ...
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Overweight and obese primary school pupils of the lung capacity is higher than normal weight, while the vital capacity index was significantly lower than the normal weight students.
超重、肥胖小学生的肺活量高于正常体重小学生，而肺活量指数明显低于正常体重小学生。
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