The relationship between bone development , menarche and height spurt among male adolescents 月经初潮与身高突增关系研究
A case - control study on psychological and social factors of urban girls with early menarche 月经初潮早发与社会心理因素关系
Research on menarche and first spermatorrhea of students in guangdong province 广东省中小学生月经初潮与首次遗精年龄现状及趋势分析
Ovulation ( 400 ~ 500 ) : the girl from the first menstruation to till the menopause ( i . e . in life ) , the total which the ovary arranges , is 400 to 500 排卵( 400 500个)女孩子由初潮至到闭经为止(即一生中) ,卵巢所排的总数,为四百至五百个。
It discusses a mathmetic model expressed by derivative polynomial and multipilication polynomial from which it derives a discrete regression equation and obtains the relation between age of menstruation and girl s first menstruation 研究导数用变量多项式与因变量有理函数乘积形式表达的数学模型,推导出回归方程计算式,给出了月经年龄与少女初潮的回归关系
初潮年龄: age of menarche初潮推迟: delayed menarche月经初潮: menarche月经初期,初潮: menarche经初期 经初期 月经初潮: menarche初长度: initial length初长: initial length初晨: morning has broken; new morning初尝新味: have a first taste of new flavour初沉池: preliminary sedimentation tank初尝败绩: tasted defeat for the first time初沉池污泥: primary sludge初产者: primipara