age distribution

Immigrants tend to arrive with an age distribution tilted toward young adults, who are entering the taxpaying prime of life.

到来的移民，其年龄分布往往偏重于青壮年，这时正进入一生中纳税的全盛时期。

For slow replacement the age distribution function assumed is unimportant.

对缓慢置换,假设的时龄分布函数变得不重要.

The age structures, distribution patterns and growth of young population of Masson pine in Duyun area of Guizhou province were preliminarily studied in this paper.

探讨了贵州省都匀地区马尾松次生林幼龄种群的年龄结构、分布格局及生长状况。

There was no difference in age distribution and sex ratio between the two groups.

两组间年龄分布和性别比率无差异。

In this paper, it mainly studies the optimal harvesting policy of the single specie with age distribution when two stages are harvested respectively.

研究了一个具有年龄结构（幼年和成年）的单种群模型，分别对其幼年种群和成年种群捕获的问题，给出以最大可持续均衡收获（MSY）为管理目标的最优捕获策略。

Results: The age distribution of population mortality was characterized by higher eld and children, lower teenster and middle age;

结果：人口死亡的年龄分布具有低龄阶段和高龄阶段的两端死亡强度高，青少年和中年段死亡强度低的特征。

A population pyramid is a graphical illustration of the age distribution of a population.

人口金字塔是反映地区人口和年龄性别比例的图像，形状像金字塔。

It is therefore essential to know the age distribution in the population.

所以,了解在该种群中的年龄组配状况是很重要的.

The age distribution of patients is related to the type of leukemia, except CML. 2 .

结果简单摘要如下: 1. 白血病之种类,在年龄分布上, 可能具有特异性.

The age distribution of APACG 、 CPACG 、 POAG and secondary glaucoma were normal distribution, while congential glaucoma were negative skewness distribution.

APACG、CPACG、POAG及继发性青光眼的年龄分布均呈正态分布，而先天性青光眼呈负性偏态分布。

In part two, two mathematical models for reactive power supply programming in distribution network is presented, the age limit of reactive power supply is added to models.

第二部分建立了配电网无功电源规划的两种数学模型，在模型中增加考虑了无功电源的使用年限。

Through an integrated analysis of the types of tectonic deformation and metamorphism, order of their formation, emplacement of plutons and isotopic age data, this paper discusses the regional distribution and formation ages of metamorphic rocks and their role and significance in the process of crustal evolution.

通过对构造变形与变质特征、形成序次、深成岩侵位及同位素年龄资料的综合分析，阐明变质岩的区域分布和形成时代，及其在地壳演化中的作用和意义。

Age Distribution and Season Dynamics of Root Biochore Soil Nutrition of White Birch-Korean Pine Stand

白桦和红松根际土壤养分的林龄分布及季节动态

The Age Distribution of College Teachers in Sub-health State and Countermeasures

高校教师亚健康状况年龄分布及干预对策

Each groups were homogenous as to age and sex distribution.

保证每组间性别、年龄的均衡。

Conclusion The data of medical record database contains plentiful information, it is a precious resource for disease statistics, and it seems to be reasonable using it to explore the characteristics of age distribution of inpatients.

结论病案首页数据库数据蕴藏着丰富的信息，是疾病统计的宝贵资源。用它来探讨住院者年龄分布特征具有一定的合理性。

Conclusion: There are particular symptom, physical sign and MRI of discoid lateral meniscus. The age distribution shows that teenagers are more than other age groups.

结论：盘状半月板的症状、体征和MRI有其相对的特殊性，其年龄分布显示青少年患者较多。