population dynamics的例句大全

The United Nations' Food and Agriculture Organization believes that as a result of population dynamics and rapid income growth, the role of developing countries in commodities market developments is increasing at a rapid pace.

联合国粮食及农业组织（FAO）认为，由于人口变动和收入快速增长，发展中国家对大宗商品市场走势的影响力正在迅速上升。

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Studies on the simulation of the population dynamics of the maize weevil growing good corn

玉米象种群动态模拟的研究

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The Population Dynamics and Survival Strategy of Wild Chinese Alligator

野生扬子鳄种群动态及其生存对策

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Study on the forecast of the population dynamics of mandarin vole

棕色田鼠种群预测预报研究

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Effect of Transgenic Cotton on the Population Dynamics of Insect in Sichuan Cotton Region

四川棉区转基因抗虫棉对棉田昆虫群落的影响

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The population dynamics and structure of this species, including the horizontal and venial distributions, seasonal variation and size distribution, were studied by panel test and positional sampling.

通过挂放试板和定点取样，研究其种群动态和结构，包括水平分布、垂直分布和季节分布，以及壳长的组成。

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Law of Population Dynamics and Reproduction of Rattus norvegicus in Sandu County

三都县褐家鼠种群数量动态与繁殖规律

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In vitro and planta bioassays of engineered endophytic bacteria in cotton with cotton bollworms Population Dynamics and Insecticidal Gene Stability of Engineered Endophytic Bacteria in Cotton

棉花抗虫工程菌对棉铃虫的离体及活体生物测定抗虫工程菌在棉株内的动态变化和抗虫基因分化率研究

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Relationship of the population dynamics and the age composition of three rodents in rural districts of northern Huaihe river, Anhui

安徽淮北农区三种鼠的种群数量动态与年龄结构的关系

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Investigations and analysis on the population dynamics of the striped flea beetle on crucifer vegetables

十字花科蔬菜上黄曲条跳甲种群动态调查与分析

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The population dynamics of striped flea beetle based on yellow sticky board was parallel with that based on the traditional method of field investigation.

黄板法能够有效监测黄曲条跳甲的田间种群发生动态，与常规的单位面积法反应的田间种群动态一致。

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The indirect habitat gradient analysis of the succession of vegetation on zokor hillock and the description of population dynamics

鼢鼠土丘植被演替的间接生境梯度分析及种群动态

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On the population dynamics of oriental fruit fly in Yunnan Province

云南桔小寡鬃实蝇种群动态研究

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A Preliminary Study on The Population Dynamics of Moss Soil Fauna

苔藓土壤动物种群动态的初步研究

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With the increasing development of natural science, in the field of natural science including physics, population dynamics, theory of control, biology, medicine, economies and edging field, many mathematical models which are described by differential equations and difference equations are proposed.

随着科学技术的进步与发展，在物理学、种群动力学、自动控制、生物学、医学和经济学等许多自然科学和边缘学科的领域中提出了大量由微分方程和差分方程描述的具体数学模型。

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There is a close relationship between TE and population dynamics, natural selection, and genetic drift. TE can make the host to get new function, meantime may get lost from the host even the extinct of population or species.

转位因子与居群动态、选择和遗传漂变等密切相关，它可以使宿主获得新的机能，同时也可从宿主中丢失，甚至使居群或物种绝灭。

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The results tested the pest data showed that the new method may be tried for the mid term or long term forecasting of the population dynamics of insect pests, and it is a good model for application.

研究结果表明，该预测模型为农业害虫种群动态的中长期预测预报提供了一种新的研究方法，是一种优良的模型。

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Early population studies concentrated on local population dynamics. However, it is not enough that populations of organisms are considered only in time. Many ecological processes that are distributed over some spaces should be considered in space.

早期的种群生态学重在研究局部的种群动力学，然而许多的生态过程都与物种的空间分布有关，仅考虑种群密度与时间的关系是不合理的，因此PDE的生态模型近年来倍受关注。

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Traditionally, population dynamics studies a closed system in which environmental factors are dealt with simply, making it difficult to understand its mechanism in ecology.

在传统上，种群动力学主要研究环境因子简单处理的封闭系统，在生态学机制理解上存在缺陷。

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Regional Documentation Centre on Human Reproduction, Family Planning and Population Dynamics

人类生殖、计划生育和人口动态学区域文件中

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