人体生长激素能促进身体健康成长，细胞修复和再生，这对肌肉的发育是非常有必要的。
HGH stimulates healthy growth, cell repair and the regeneration which is necessary for muscle development.
青少年正处在生长发育迅速增长的时期，这个时期的生长发育水平将对其一生的成长起着重要的影响。
Adolescene is at the period of growing rapidly, and the growth level plays an important role in his whole life. Furthermore, the social development is human-oriented.
前言：目的：了解海口市小学生生长发育水平，为儿童保健措施提供科学依据，以促进少年儿童的健康成长。
Objective: to find out the growth levels of primary school students in Haikou city and to provide scientific evidences to make measurements for health protection for children.
前言：目的：了解海口市小学生生长发育水平，为儿童保健措施提供科学依据，以促进少年儿童的健康成长。
Objective: to find out the growth levels of primary school students in Haikou city and to provide scientific evidences to make measurements for health protection for children.
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