片语

age composition年龄结构；[统计] 年龄组成；年龄分布

age distribution[统计] 年龄分布

Adjusting The Age Structure调整从结构

economic age structure经济年龄结构

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

age structure of bamboo竹龄结构

class age-structure类年龄结构

age class structureAge class structure in fisheries and wildlife management is a part of population assessment. Age can be determined by counting growth rings in fish scales, otoliths, cross-sections of fin spines for species with thick spines such as triggerfish, or teeth for a few specie

flat manthe age ofment structure扁平化和管理结构

steady age structure稳定年龄结构

英汉例句

• the population age structure has undergone great changes because of these facts. in particular, the aging population has become a ma- jor problem confronting japan.

  上述现象使日本的人口年龄结构发生了很大变化，特别是人口老龄化成为日本目前要面临的主要问题。

• of course, the division of population age structure is comparative, but not invariable.

  当然，对人口年龄结构的划分是相对的，而不是一成不变的。

• age structure and regeneration mechanism of acanthopanax senticosus population were researched in different ecological environments.

  对不同生境刺五加种群的年龄结构和更新机制进行了初步研究。

• the age structure of rhizome is an increasing model at length and weight at the end of growing season.

  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。

• at the same time of population census, the age structure of wintering common cranes had also been examined.

  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。

• cutting changed the age structure of tree species, and reduced the distribution area of over-matured forests.

  采伐改变了树种年龄结构，降低了过熟林的相对面积；

• population is the main of market. the change of population age structure will bring change of consuming demand and development trend.

  人口是市场的主体，人口年龄结构的变动必然也会引起市场的消费需求和发展趋向的变化。

• along with development and succession of community, the age structure changes from growing, stabilized, senescent to residual type.

  随着群落的发育和演替，青巖油杉种群年龄结构的变化趋势为增长型→稳定型→衰退型→残留型。

• the age structure of chinese sports population take on a distribution of 「saddle shape」, which showed that the ageing population (especially the female elderly) makes an important role in it.

  根据研究表明，我国体育人口年龄结构呈现「马鞍型」分布，老年人口是体育人口的重要组成部分。

• with data from the third national industrial census, labor「s age structure of labor-intensive manufactures in which rural immigrant labor shortage appeared is analyzed.

  本文运用第三次全国工业普查资料分析了出现「民工荒」的劳动密集型制造业的职工年龄结构。

• applying the methodology of standardized crude rate is necessary to remove the impact of the age structure so that the standardized dependency ratio and demographic dividend can reflect the reality.

  只有应用「粗率」的标準化方法，对劳动年龄人口的年龄进行标準化，消除年龄结构的影响，「标化」人口抚养比和人口红利，才更有可能反映实际。

• the result revealed that there was obviously changed in age structure and reproduction structure of l. lagurus with the decline of the population quantity.

  结果表明，随着草原兔尾鼠数量的下降，种群的年龄结构和繁殖结构都发生了明显的变化。

• with aging of the people age structure in china and developing of market economy, its finance mode must be changed to part-accumulating system.

  随着中国人口年龄结构的不断老化和建立市场经济的需要，必须由现收现付制转变为部分积累制。

• the age structure of the fish was simple and the capture tend to be young fish.

  鱼类年龄结构简单，主要经济鱼类低龄化趋势严重；

• the paper analyzes the economic effect in the light of the characteristics of the change in population age structure of gansu province.

  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 height structure and diameter structure of a. senticosus population relate with community environments and with its own age structure characteristics.

  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 age structure and educated structure of calisthenics teachers are reasonable but the professional qualify is poor in some degree.

  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 major reason for the coexistence of many types of age structure is ascribed to the differences in natural disturbance regime in each region.

  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。

• youth-style labor」s age structure of labor-intensive manufactures, and reaction of rural immigrant labor for the situation, are underlying causes of rural immigrant labor shortage.

  劳动密集型制造业的「青年型」用工年龄结构以及民工对此采取的对策，是导致「民工荒」的深层原因。

• age structure effect----changes in the age distribution induced by the rate of population growth.

  年龄结构效应——由人口出生率引起的年龄分布变化。