在年龄结构的另一端，老年人需要膳宿和医疗保健设施。
At the other end of the age spectrum are accommodation and health-care facilities for elderly people.
这些都是年龄结构人口胎次递进算子新的结果。
These are the new results in age structure parity progressive population operator.
年龄结构效应——由人口出生率引起的年龄分布变化。
Age structure effect — Changes in the age distribution induced by the rate of population growth.
揭示了我国控制理论领域科学合作年龄结构的一些特征。
It reveals some characteristics of age structures in scientific collaboration of control theory in China.
这次人口普查反映出中国人口年龄结构发生了较大变化。
The census results show that big changes have taken place in the population's age composition .
对一类有限空间年龄结构种群模型提出了一种数值方法。
A numerical method is studied for an age-structured population model with space-limited recruitment.
本文针对甘肃省人口年龄结构变动特点，分析其经济效应。
The paper analyzes the economic effect in the light of the characteristics of the change in population age structure of Gansu province.
测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。
The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied.
这样一项政策改变了年龄结构：年轻人的人口比例下降，而老年人的比例增长。
Such a policy distorts the age structure: the proportion of population in the younger age groups goes down and proportion of the elderly increases.
在生长季末，种群中根茎在累计长度和重量上均为增长型年龄结构。
The age structure of rhizome is an increasing model at length and weight at the end of growing season.
割草场和放牧场硬拂子茅无性系种群分蘖株均属于增长型年龄结构。
The age structures of the tillers of the grass on both pastures for grazing and cutting uses are of an expanding type.
研究某一类改进的关于年龄结构的非线性种群系统的最优控制问题。
The present paper is concerned with the optimal control problem for an improved nonlinear age-dependent population dynamics.
结果：杭州市人群年龄结构趋向老化，慢性病成为主要健康危害因素。
Results. The construction of age of population in Hangzhou is gradually ageing. The chronic disease is main health risk factor.
在进行种群数量调查的同时，还对越冬灰鹤种群的年龄结构进行了探讨。
At the same time of population census, the age structure of wintering common cranes had also been examined.
不同地段自然干扰状况的差异是造成多种年龄结构类型共存的主要原因。
The major reason for the coexistence of many types of age structure is ascribed to the differences in natural disturbance regime in each region.
年龄标准化死亡率：根据(一国)人口年龄结构差异的影响修正的死亡率。
Age-standardized death rate: death rate corrected so as to allow for the effects of the differences in age structure of a population.
在周期环境下，研究一类具有年龄结构种群线性动力系统的最优控制问题。
The optimal control problem of linear population dynamic system with age-structure in periodic environment was investigated.
本文主要研究具有扩散和年龄结构的三种群竞争系统的最优收获策略问题。
This paper is mainly concerned with optimal harvesting policy for three competing species with age-dependent and diffusion.
在欠发达国家中，寻求职业的人数主要取决于该国人口数量的多少与年龄结构。
The number of people searching for work in a less developed country depends primarily on the size and age composition of its population.
白天工作人口的受教育程度较高，通勤半径较小，外来通勤人口年龄结构较轻；
The education level of daytime workers is relatively high, and their commuting distance is not far.
通过比较分析，从年龄结构、树种结构和灌木密度看对抗御火灾的能力不尽相同。
After comparing and analyzing, the fire-resistant ability of different age structure, species and shrub density looks not same.
教师队伍的年龄结构和学历结构等相对合理，但是健美操教师的专业素质相对较低。
The age structure and educated structure of calisthenics teachers are reasonable but the professional qualify is poor in some degree.
结果表明，应用立木级结构代替年龄结构研究栲树种群的结构和动态特征是适用的。
The result shows that the Tree class structure replacing the age structure is suitable for studying the structure and dynamics of Castanopsis fargesii population.
科研单位人力资源方面大多在职称结构、年龄结构、学历分布等方面有着各种问题。
The Scientific research Unit human resources aspect mostly in aspects and so on title structure, age structure, school record distribution has each kind of question.
刺五加种群的高度结构与径级结构的变化都与群落环境以及本身的年龄结构特点有关。
The height structure and diameter structure of A. senticosus population relate with community environments and with its own age structure characteristics.
我国目前的人口形势是低生育率、高增长量，总体素质仍然较低，年龄结构趋向老化。
The current population situation of China is characterized by low fertility with high increasing quantity, low overall quality of population and aging structure.
结果表明，西部群体干部的年龄结构以中青年为主，35岁以下的女性群体干部断层；
The result shows that the young & middle cadres occupy a leading position and female cadre under 35 years old is faulting.
结果表明，西部群体干部的年龄结构以中青年为主，35岁以下的女性群体干部断层；
The result shows that the young & middle cadres occupy a leading position and female cadre under 35 years old is faulting.
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