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age structure

  • 年龄结构:指一个特定地区或群体中各个年龄段的人口比例和分布情况。

网络释义专业释义

  年龄结构

Microsoft Word - 徐志兰.DOC 关键词:年龄结构;人口动力学;最优控制;种群模型; [gap=10121]Key Words: Age-structure; Population dynamics; Optimal control; Population model

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短语

age structure [统计] 年龄结构 ; [统计] 年龄构成 ; 年龄分布

age structure of population 种群的年龄结构 ; 人口年龄结构 ; 人口年龄构成

Population age structure 种群年龄组成 ; 人口年龄结构

age structure model [统计] 年龄结构模型

Adjusting The Age Structure 调整从结构

age-structure fish population systems 年龄结构鱼群系统

me age structure 信息结构

Age structure report 年龄结构

the age structure 年龄结构

 更多收起网络短语
  • 年龄结构 - 引用次数:5

    The age-structure is similar with the DBH-class distribution and high-class distribution for three species.

    3物种的种群年龄结构与胸径级结构、高度级结构相吻合。

    参考来源 - 天童常绿阔叶林米槠—木荷群落历史动态及干扰事件的重建
  • 年龄结构 - 引用次数:3

    In chapter two, we establish a kind of new class age-structure SEIR epidemic model with impulsive vaccination and nonlinear infectivity, which contains ODEs and PDEs at the same time.

    第二章,建立了一类新的带有脉冲接种的类年龄结构SEIR流行病模型,并考虑其具有非线性传染率。 该模型既含有常微分方程,又含有偏微分方程。

    参考来源 - 传染病模型和脉冲微分系统的动力学研究

·2,447,543篇论文数据,部分数据来源于NoteExpress

双语例句权威例句

  • But there is no evidence to show that the structure of eyes is changed by wearing glasses at a young age.

    但是没有证据表明年轻时候眼镜改变眼睛结构

    youdao

  • Such a policy distorts the age structure: the proportion of population in the younger age groups goes down and proportion of the elderly increases.

    这样一项政策改变年龄结构年轻人人口比例下降,而老年人的比例增长

    youdao

  • From age structure, the main forces of the divorce group aged from22 to 35; the stable period of marriage is between 36 and 50; after 50, divorce rate surges again.

    年龄结构看,22 ~ 35岁人群离婚主力军36 ~ 50年龄段是婚姻平稳,50岁以上人群离婚率上扬

    youdao

更多双语例句
  • Its age may help explain the structure's main design flaw--inadequate insulation between the upper and lower floors.

    FORBES: Magazine Article

  • In the past we talked about "dual use" military-civilian technologies, but truth be told, not much of what's in a bomb migrates back to a BMW. However, the money flowing into military and homeland infra-structure security will leverage revolutionary technologies and materials of the new digital age.

    FORBES: The Security-Industrial Complex

  • The Neanderthals' more visually-focused brain structure might also have affected their ability to innovate and to adapt to the ice age that was thought to have contributed to their demise.

    BBC: Neanderthals' large eyes 'caused their demise'

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