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   population 在 农业经济 分类中 的翻译结果: 查询用时:1.902秒
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人口学与计划生育
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环境科学与资源利用
预防医学与卫生学
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  人口
    On the Relationship between the Population andCultivated Land in Gangu County
    试论甘谷县的人口与耕地关系
短句来源
    An Analysis of Population Economical Problem in the Hilly and Gully Region of the Northern Part of Qianxian County
    乾县北部丘陵沟壑地区人口经济问题的分析
短句来源
    SEVERAL PROBLEMS TO STUDY THE POPULATION SUPPORTING CAPACITY OF LAND
    土地人口承载量研究中的几个问题
短句来源
    SCALE AND MEASURES OF COORDINATIVE DEVELOPMENT BETWEEN POPULATION AND ECONOMY IN LINSHUI COUNTY
    邻水县人口经济协调发展规模及对策
短句来源
    AN ANALYSIS OF CHINA'S NATIONAL CONDITION AND THE DEVELOPMENT OF RURAL ECONOMY FROMTHE VIEWPOINTS OF POPULATION, RESOURCES AND ENVIRONMENT
    从人口资源与生态环境的观点分析我国国情与农村经济发展
短句来源
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  种群
    The logistic model of DNdt=r·N·\{K-N\}K can describe the increase of population.
    由于人类种群的增长可用Logstic模型DNdt =r·N· K -NK 加以描述。
短句来源
    Based on the data of land-use acreage of Zhejiang province from 1990 to 1999 and adopting the quantitative analysis of landscape ecology and life table analysis of population ecology, this paper studies quantitatively the temporal division of regional land-use structure and its dynamic changes in different periods.
    采用浙江省1990-1999年土地利用现状的用地面积数据作为研究的基础数据与材料,运用景观生态学中有关结构数量分析的方法,进行研究区不同时期土地利用结构分异的定量分析,借助于种群生态学中生命表的分析方法进行不同时期土地利用动态变化分析。
短句来源
    According to these indicators, and based on the investigation and statistics data from the big sample random sampling, the indicators about the population, land resources distribution, crops output, and the changing situation of GDP, water, soil, sandstorm disaster, and the wild animal population in the program region were systematically studied, and based on the results, the social, economical, and ecological benefits of the Grain for Green Program were objectively evaluated.
    根据这些评价指标,以大样本随机抽样的调查、统计数据为基础,分别对退耕还林工程区人口、土地资源分配状况、农作物产量和国民产值变化情况、水文变化、土壤变化、沙尘暴气候变化、灾害性气候变化、野生动物种群变化等指标进行了系统研究,在此基础上,对退耕还林工程的社会、经济、生态效益进行了客观评价。
短句来源
    the single biological population,needing to be diversified;
    生物种群单一,需多样化;
短句来源
    The paper described the population and distribution of the sea cucumber resource in the world. The main countries of the sea cucumber production as well as the general situation of the central markets in Hang Kong and Singapore were also introduced.
    报道了世界海参资源的种群、分布、主要生产国以及香港、新加坡两大世界海参中心市场的概况。
短句来源
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  群体
    This paper is a summary of the production situation and economic profit of long-line , the population characteristic and resources state of Trichiurus nanhaiensis of the adjacent waters of Taiwan Bank from May to November during 1994 and 1996. The catch per day fluctuated from 1000 to 1500 kg, and the highest was 6500 kg.
    本文叙述了1994—1996年(5—11月间)在台湾浅滩邻近海域进行的带鱼延绳钓探捕生产情况、经济效益、南海带鱼群体特点及其资源状况等调查结果。 在调查期间探捕船日产量变动于1000—1500kg,最高为6500kg;
短句来源
    the raising of population quality;
    坚持以人为本 ,重视人口群体素质的提高 ;
短句来源
    It is very important to improve the Farmers' science and technology level, because that is important in whole nationality qualities, and the majority in Chinese population is farmer who has the lowest qualities.
    农民是我国国民中人口最多、基础素质最低的群体,农民科学文化素质在国民整体素质提高中,占有举足轻重的位置。
短句来源
    However most of the population in our country is farmers, so study their status ofconsumption is significative.
    占我国人口绝大多数的农村居民是有着很大消费潜力的一个群体,对他们的消费状况进行研究将会有很重要的意义。
短句来源
    Paying attention to the old-age population of the countryside, researching the elder living condition in underdeveloped rural areas, working hard to improve and raise their living quantity are resolving the "agricultures、 rural areas、 farmers" problems, building of a New Socialist Countryside and the overall construction middle-class family societies are important historical mission.
    关注我国农村老年人口,研究农村经济欠发达地区老年群体生活状况,努力改善和提高他们的生活质量,是解决“三农”问题、建设社会主义新农村和全面建设小康社会的重要组成部分。
短句来源
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  population
On the differentiability of the parity progressive population semigroup
      
We are concerned with the differentiability of the parity progressive population semigroup under certain weak assumptions.
      
We prove by studying the properties of the spectrum of the parity progressive operator of population that there existst0>amp;gt;0 such that the parity progressive population semigroup {T(t): t≥0} is differentiable ift>amp;gt;t0
      
In this paper, we present a simple and direct approach in which supermartinagles are used to approximate the optimal stopping sets associated with the Bayesian sequential test for normal population means.
      
For von Mises population M(μ,k), we find that six bootstrap confidence intervals are second-order correct like the approximate normal confidence interval, and STUD-interval is third-order correct.
      
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