体质性发育迟缓 Constitutional growth delay
体质性青春发育延迟 CDGM ; constitu-tional delayed puberty
体质性青春期发育延迟 constitutional delay of puberty
质体发育 Plastids development
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结果20个民族聚合成主要的三大类，各类群间的体质发育存在明显差异。
Re- suits Three categories were assembled from 20 minority groups. By compared the physical development among these three categories, there were statistical significant differences.
根据体质发育水平等因素对学生进行再划分，以探讨体育教学改革的新思路。
The authors further sorted the students according to factors such as the level of physical development, so as to search for new ideas for PE teaching reform.
目的探讨极低出生体质量儿（VLBWI）并支气管肺发育不良（BPD）的危险因素及预防对策。
Objective To investigate the risk factors, prevention and treatment of bronchopulmonary dysplasia(BPD) in very low birth weight infants(VLBWI).
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