龄结构 age structure
年龄结构 [统计] age structure ; Age Composition ; age ratio ; Age Distribution
城市人口年龄结构 age composi-tion
人口年龄结构 age structure of population ; Population age structure
种群的年龄结构 age structure of population
年龄结构模型 [统计] age structure model
年龄结构的模型 age-structured models
年龄结构耐火结构 age-resisting makeup
年龄结构种群模型 age-structured population model
在现今世界排坛，队伍年龄结构是否合理，以及在体重、身高方面的差异，已经成为影响比赛结果的至关重要的因素。
In modern volleyball world it has become an important factor for match results impacted by the age structure, the difference of height and weight.
摘要：在现今世界排坛，队伍年龄结构是否合理，以及在体重、身高方面的差异，已经成为影响比赛结果的至关重要的因素。
Absrtact: In modern volleyball world it has become an important factor for match results impacted by the age structure, the difference of height and weight.
方法：对45例不同胚(胎)龄时期的鞍旁结构行组织学连续切片，观察鞍侧腔壁结构及其内容物的形态学变化过程。
Methods: Serial histological sections of 45 human embryos and fetus were performed to observe the development and organization of the contents of the compartment.
应用推荐