migration

Selectivity of human migration long been the focus of demographers and economists .

人口迁移的选择性一直以来都是人口学家和经济学家关注的焦点

Swallows begin their migration south in autumn .

燕子在秋季开始向南方迁移。

The scale of migration took a quantum leap in the early 1970s .

20世纪70年代初，移民的规模骤然扩大。

Birthplace data are only the crudest indicator of actual migration paths .

出生地信息只能非常粗略地显示实际移民过程。

During the last recession , migration to the sunbelt accelerated .

在上个经济萧条期，人们向美国南部阳光地带移民的速度加快了。

Under modern conditions of communication and transportation , population adjustment is maintained by a ceaseless process of individual migrations .

在现代的交通运输条件下，人口调节是通过个人流动的经常性过程来维持的。

They have led some birds to give up on migration .

它们已导致一些鸟类放弃迁徙。

Researchers in Germany used miniature GPS tags to track the migrations of 70 white storks from different sites across Europe and Asia during the first five months of their lives .

德囯的研究人员用微型GPS标签追踪了70只白鹳，发现它们生命的头五个月在欧洲和亚洲不同的地点迁徙。

Andrea Flack of the Max Planck Institute found that birds following traditional migration routes were more likely to die than German storks that flew only as far as northern Morocco , and spent the winter there on rubbish dumps .

马克斯普朗克研究所的安德里亚·弗拉克发现，与只飞到摩洛哥北部并在那里的垃圾堆过冬的德囯白鹳相比，按照传统迁徙路线飞行的鸟儿死亡的可能性更大。

Urbanization — migration away from the suburbs to the city center — will be the biggest real estate trend in 2015 , according to a new report .

根据一篇新报道，以从郊区迁往市中心为特色的城市化进程将会成为2015年房地产领域最大的发展趋势。

This line graph is a quick , visual way to tell the reader about the bird 's migration .

要告诉读者关于鸟迁徙的事情，线状图是一种快速、直观的方式。

Here is a graph that charts how far a bird flies during the first Five days of its spring migration ( See Graph 2 ) .

此图显示了一只鸟在春季迁徙前五天的飞行距离（见图2）

Birds also have built-in timepieces which send them off on fall and spring migrations .

鸟类也有天生的时间感应器指导它们秋春迁移

It foundered during the turmoils accompanying the Great Migrations .

它在随着民族大迁徙而出现的混乱中崩溃

Analysis of Diffusion Coefficient for Migration Model in Food Packaging Material

分析食品包装材料迁移模型中的扩散系数

A workstation collection has one migration policy and one storage group .

一个工作站集合拥有一个移植策略和一个存储组。

International Migration and Contemporary International Security Conflict , Interaction and Challenge

国际移民与当代国际安全：冲突、互动与挑战

Finally , First Phase of Server Migration Over !

最后，第一阶段的服务器迁移！

A New Approach to the Migration - Enrichment Mechanism for Uranium

铀的迁移富集机理新探索

These methods mentioned above are the base of migration velocity modeling .

上述方法是我们进行偏移速度建模的基础。

Open a command line and change to the migration folder .

打开命令行，切换到迁移文件夹。

One flaw of the economic factor is migration .

一缺点，经济发展的因素所带来的缺憾之一是移民。

Large Steel Tank the Overall Migration and Risk Prevention

大型钢制油罐的整体迁移与风险预防

The Migration Influence on the East Asian Society in the Globalization Era

全球化时代的移民对东亚的影响

Migration of parole board will also face similar situation .

假释委员会的移植同样面临着相似的情况。

The Migration Research and Simulation of the Oil Pollutant under the Preferential Flow

优先流作用下石油类的迁移研究及模拟

Since reform and opening , Korean migration was enhanced .

改革开放以来，朝鲜族的人口流动明显增强。

His recent research deals with migration and violence .

他最近的研究涉及移民与暴力。

There is population migration phenomenon in ancient times .

人口迁移现象自古有之。

Except for migration method , migration velocity is also a key factor of migration .

事实上，地震偏移成像成功与否的关键因素除了偏移成像方法以外，速度模型的准确与否也很重要。