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## age structure

• [统计] 年龄构成；年龄分布

### 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

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

me age structure 信息结构

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

• 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

• 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

• 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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