查询词典 decrease in population

Under new circumstances,we should change our ideas in the management of floating population ,improve the methods of managing floating population and thus prevent the illegalities and crimes committed by floating population.

反思以往流动人口犯罪治理的得失，新形势下如欲成功治理流动人口犯罪，必须更新流动人口管理的理念，改进流动人口管理方法，积极预防流动人口违法犯罪。

Shenzhen is a city of immigrants in more than 400 million of the resident population, only around 50% of the population is domicile, or legal sense "Shenzhen", there are more than 50% is "transient population" is not even "temporary licence" of the "three noes" and "two nil","without" members, They are not legal sense "Shenzhen."

深圳是一个移民城市，在400多万的常住人口中，仅有50％左右是户籍人口，即法律意义上的&深圳人&，还有50％以上是&暂住人口&，甚至是没有&暂住证&的&三无&、&二无&、&一无&人员，他们不是法律意义上的&深圳人&。

Next, regarding question two, because present uses the injection contraceptive the method to maintain this population the stability, moreover already did not have the individual to move away or the situation which poaches, for this reason we transform this populations stability to ask this population every years newborn baby quantity to subtract this year death individual the quantity differential value; Moreover from this population year quantity with this year the end of the years quantity differential value, when tends 0, namely thought that this community individual quantity is stable, thus the question stability problem transforms to ask simple targets optimization problems model building; Carries on using MATLAB to the model obtains, obtains, when did not consider when uncertainty factor influence must inject the medicine female animal quantity is 276 heads, but when had considered after twin and by duplicate injection these two uncertainty factor influence, obtains must inject the medicine female animal quantity is 352 heads, including 110 are by the duplicate injection.

其次，对于问题二由于现在采用注射避孕药的方法来维持该种群的稳定，而且已经没有个体被运走或被偷猎的情况，为此我们把该种群的稳定性转化为求该种群每年的新生幼仔的数量减去该年死亡个体的数量的差值；另外从该种群年头的数量与该年年底的数量的差值，当趋于0时，即认为该群落的个体数量是稳定的，从而把问题的稳定性问题转化为求单目标的最优化问题建立模型；利用MATLAB对模型进行求得，得出当不考虑不确定性因素影响时要注射药物的雌性动物数量为276头，而当考虑了双胞胎和被重复注射这两个不确定性因素影响后，得到要注射药物的雌性动物数量为352头，其中有110头是被重复注射的。

Area is located in northeast China's corn-growing areas of quality, the region's total population of 530,000, of which agricultural population accounts for 90 percent of the total population.

该区地处我国东北优质玉米种植区，全区总人口53万，其中农业人口占总人口的90%。

This paper sets up demand mathematical model of highway based on statistical data of population, GDP and total length of highway and theory of production function,and quantify analyses relationship of highway density with population density and PGDP and its development. And research the population, economic and society of different degree affecting on highway, and the note worthily distributing rule of highway density and andlyses its reason by habit depend on index.

以人口、国民生产总值及公路里程统计数据为基础，根据生产函数理论，建立公路需求数学模型，定量地分析我国各省区公路密度与人口密度、人均GDP关系及动态变化，揭示了人口、经济、社会因素对公路建设不同程度的影响以及公路密度显著的区域性分布规律，并用公路密度依赖－偏好指数分析其原因。

The objectives of the research were to screen molecular markers of sorghum resistant gene to the physiological strain No.3 of head smut with SSR. Bulked Segregation Analysis was applied in the study. Two segregation populations, restorer line population R population 2381R/Aisi and maintain line population Tx622B/7050B, were used in the research. The amplification bands of 94 pairs primers from 109 ones were clear and stable.

为了筛选高粱丝黑穗病抗病基因的SSR标记，以高粱抗病亲本(7050B、2381R)和感病亲本（Tx622B、矮四），及其杂交组合后代为材料，用CTAB法从叶片中提取高粱基因组DNA，通过SSR技术对高粱丝黑穗病3号生理小种抗性基因进行了初步筛选，结果表明：供试109对SSR引物中筛选出扩增条带清晰且稳定的引物94对。

We will introduce some definitions in the Mathematics Ecology and the mathematical theories and methods. Methods for studding the population ecology or the more ordinary ecology are by setting up the mathematical modelings. We will give the examples of the single population models and the population with interaction models.

简单介绍数学生态学中的一些常用的名词和研究问题所用的数学手段-通过数学建模的方法，将一个实际的生态问题量化为一个数学问题，给出常用的单种群增长的数学模型和具有种间关系的多种群数学模型。

This created a certain amount of "industrial pole" effect, this "industrial pole" is divided by the radius of the population ecology and population ecology radius is the size of the population divided by the number of service industries service space distance and ecological costs.

这种情况造成了一定程度的&产业极&的效果，这种&工业极点&是除以半径的种群生态学和种群生态学半径的大小，人口除以服务行业的服务空间距离和生态代价。

Population size dynamics and population statistics features of plateau pikas are researched in this paper, v/hich supplies population ecology research of plateau pikas with important parameters.

本论文研究了高原鼠兔种群数量动态和种群统计特征，为高原鼠兔种群生态学研究提供了重要参数。

Result It was confirmed as a reasonable population when the total stem number of wheat in reviving stage was lower than the mature spike number, the shuttle-shaped plant form at the stage of maximal population, and the leaf area coefficient in flowering stage was 4. Soil fertility had significant influence on the growth of wheat stems and leaves at early stage and had certain influence at middle-late stage. Density influenced the growth of stems and leaves before the formation of the largest population, while it had little effect after flowering.

结果］冬小麦起身期的总茎数略低于成穗数，群体最大时期株型呈现梭形，开花期叶面积系数为4是较为合理的冠层结构；土壤肥力对小麦前期的茎、叶生长影响显著，在中后期也有一定的影响；密度则在形成最大群体前影响茎叶的生长，到小麦开花后影响不明显。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。