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   population 在 水产和渔业 分类中 的翻译结果: 查询用时:0.508秒
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水产和渔业
生物学
人口学与计划生育
植物保护
农作物
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宏观经济管理与可持续发展
环境科学与资源利用
农业经济
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  人口
    With the growth of world population and the development of science and technology, fishery resources have been increasingly scarcer from once so-called“an inexhaustible resource”.
    随着世界人口的增长和科学技术的发展,渔业资源从一度被称之为“不可枯竭”的资源变为日益稀缺的资源。
短句来源
    It was foundthat the coastal fishing area with a 30% of the total population of China occupied 73% of yearlytotal harvest, but instead the freshwater fishing area and nonfishing mountain region with a 70%more of the total population of China had only 27%.
    着重指出了人口为全国30%的沿海渔业区占有全国73%的水产品,而人口为70%的淡水渔业区和非渔业区只占有全国水产品的27%。
短句来源
    With the rapid development of economy and population,the pollution of the Jianhu Lake attracts attention.
    随着经济和人口的快速发展 ,鉴湖的污染成为人们关注的热点。
短句来源
    POPULATION, ECOLOGICAL ENVIRONMENT AND RENTING SYSTEM
    人口、生态与地租制度
短句来源
    A Simulation Study of the Effects of Population and Market Factors on the Marine Fishery Consumption: Case of Zhoushan
    人口与市场因素对海洋渔业消费品影响的仿真分析──以舟山市为例
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  种群
    Population Dynamic Characteristics and Sustainable Utilization of the Anchovy Stock in the Yellow Sea
    黄海鳀鱼种群动力学特征及其资源可持续利用
短句来源
    POPULATION ECOLOGY OF [LEIOCASSIS LONGIROSTRIS (GNTHER)] (PISCES,BAGRIDAE) WITH REFERENCE TO THE PROBLEM OF MAXIMUM SUSTAINED YIELD
    长吻[Leiocassis longirostris (Günther)]的种群生态学及其最大持续渔获量的研究
短句来源
    THE ANALYTIC MODEL OF POPULATION DYNAMICS FOR CANNIBAL FISHES
    自食性鱼类种群动态的分析模式
短句来源
    THE FISH POPULATION STRUCTURE AND POTENTIAL PRODUCTION IN JINJI LAKE
    金鸡湖鱼类种群结构及其鱼产潜力的研究
短句来源
    PRELIMINARY S-UDY ON THE POPULATION DYNAMICS AND PRODUCTION OF MOINA AFFINIS BIRGE (CLADOCERA) IN XIAHU LAKE, ZHANJIANG
    湛江霞湖近亲裸腹溞(Moina affinis Birge)种群动态和生产量的初步研究
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  人群
    THE EFFECTS OF HEI RIVAL POLLUTION ON POPULATION HEALTH EFFECT
    黑河污染及其对人群健康效应影响的研究
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  群体
    Genetic Analyses of the Spawning Stock of Chinese Sturgeon (Acipenser Sinensis) and Contribution Assessment of Artificial Propagation on Natural Juvenile Population Based on Microsatellite Markers
    基于微卫星标记的中华鲟繁殖群体遗传学分析与人工繁殖对自然幼鲟群体的贡献评估
短句来源
    Division of Stock Composition in the Samples of Mixed Stocks within a Population
    一个种群混合群体样本群体组成的划分
短句来源
    DNA polymorphism of twenty individuals of Goldfish,each of them from three cultured populations such as Tianjin population(TJ),Suzhou population(JS) and Fuzhou population(FZ) were analyzed by random amplified polymorphic DNA(RAPD) technique.
    采用随机扩增多态性DNA(RAPD)方法对金鱼3个不同地区养殖群体-天津塘沽(TJ)、江苏苏州(JS)及福建福州(FZ)群体各20ind的DNA多态性进行了分析。
短句来源
    There were five haplotypes(H1,H2,H3,H4 and H5) in the Yellow Sea population,but only one haplotype(H1) in the Bohai Sea population.
    在黄海群体中除检测到单倍型H1外,还检测到其余4种单倍型。
短句来源
    The lower heterozygosity and genetic diversity in the raised population suggested that the approaches such as marker assisted selection should be introduced into grouper breeding programs.
    点带石斑鱼与野生群体相比,养殖群体的杂合度和遗传多样性有所下降,提示在点带石斑鱼的人工繁育过程中应引进标记辅助选择等技术手段.
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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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