1. There has been a migration of people from the country to the towns.
    人们从乡下移居城镇。

2. Scientists have studied the migration of fish over long distances in the river.
    科学家研究过江中的鱼类远距离回游的现象。

1. 移行：因此,研究者推测,NMDA异常将导致神经元移行(migration)、突触连接减少、神经元变性和凋亡. 越来越多的证据提示,非典型抗精神病药物治疗精神分裂症的基础与其逆转NMDA功能低下有关. 精神分裂症尸脑证明,前额叶和丘脑的NMDA受体密度和数量明显低于正常人.

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2. 迁徙：最新诗集<<迁徙>>(Migration)的获奖应该是众望所归,毕竟几十年来国家图书奖对他已经亏欠良多. 珍妮.伯兹奥尔的处女作<<烛芯>>(ThePender-wicks)毫无争议地捧得青年文学奖. 该作品讲述了一个单身父亲和4个女儿之间的故事.

1. migration的解释

1. Therefore, it must be that the pots were spread by migration, not trade.
    因此，这些壶肯定是通过迁移而不是贸易来流传的。

2. A swarm of Jurassic insects and reptiles, allegory of the long terrestrial migration the Pendulum was tracing, aimed at me like angry archons with their long archeopterix-beaks; the planes of Bréguet, Blériot, Esnault, and the helicopter of Dufaux.
    一群侏罗记岩石的昆虫和爬虫，是傅科摆所遵循的漫长地域迁移的的预言，如忿怒的统治者般以其始祖鸟的鸟喙对准了我。

3. migration的意思

3. The mechanisms for the directional migration and formation of rare earth oxysulfide were discussed.
    在实验观察与分析基础上，对La、Ce的定向迁移机制与稀土氧硫化物的形成机制进行了探讨。

4. Numerical simulation of contaminant migration process for landfill consideringeffects of sorption and degradation.
    吸附和降解耦合对填埋场污染物运移过程的影响。

5. This paper expounded the interdependent relationship between embankment and highland in the process of the development of Yun-Gui plateau, the formation and its function of the primary compounding economy, the migration and distribution of the local nation and the foreign immigrants, the thought and strategy of administering Yun-Gui plateau in Chinese dynasty, the regional politics'evolvement to reveal the deep relation between the social history elements and economic development of Yun-Gui plateau
    通过阐述云贵高原开发过程中坝子与山地的相互依存关系，初级复合型经济的形成及其作用，本地民族与外来移民的迁徙和分布，历代王朝治理云贵高原的思想及治策，云贵高原地缘政治的演变及历朝的应对，力图揭示社会历史因素与云贵高原经济开发间的深层联系。

6. Only monarchs born in late summer or early fall make the migration, and they make only one round trip.
    只有蝶王出生在深夏或者初秋，这使得它们要移民，并且它们只有一次往返旅行。

7. Scientists have studied the migration of fish over long distances.
    科学家研究过鱼类远距离回游的现象。

8. The dramatic difference in annealing behavior at room and elevated temperatures indicates the migration behavior of radiation-induced species at elevated and room temperatures.
    高温和室温下JFET运算放大器所表现出的这种不同退火特性，说明了高温和室温下辐射感生空穴的不同输运行为。

9. This paper analyzes the controlling factors:(1) The fault occurrence in different eras have different effects on the oil and gas accumulation; (2) Unconformity surfaces are usually major hydrocarbon migration channels and the belts of hydrocarbon accumulation; (3) The Triassic fan delta faceis and the alluvial fan facies are favorable reservoir blocks in this region; and (4) The Triassic oil reservoirs in the Wuerhe|Xiazijie area possess multiple reservoir|seal assemblages, and the Karamay Formation and the Baijiantan Formation are major regional cap rocks.
    对该区控制油气成藏的各种因素进行了综合分析，指出：断裂在不同时期对油气的聚集具有不同的控制作用；地层不整合面往往成为油气运移的重要通道和油藏聚集成藏带；三叠系扇三角洲相和冲积扇相是该区有利储集体发育的主要沉积相带；乌夏地区三叠系油藏具有多套储盖组合，三叠系克拉玛依组和白碱滩组是主要的区域盖层；三叠系油藏大都为发育在鼻隆构造背景上的岩性地层油藏，这种受构造背景控制的岩性地层油气藏是该地区三叠系油气的主要成藏模式。

10. Japan to time Tainan prefectural city Nanmenwai area, because under Japanese government's government order, starts large-scale changing burial sites, because changes burial sites namely the Taina metropolis plan which implements for the Japanese government, divides into three times, the seed time, the development time, launches the time, gradual expands Taina's metropolis scope, therefore in obtains the land in the process, an item of suburb generation of development, the Tainan prefectural city Nanmenwai's grave area becomes the date to the time Taina southing development center of gravity, after undergoing the grave migration the land, passes through plans, traveling schedule education, movement facility special-purpose, Japan to the time Tainan prefectural city Nanmenwai's grave picture, is penetratingUnder Japanese government's political power's changing burial sites, after as well as changes burial sites the construction, transforms the school and the athletic field, vital region.
    日至时期的台南府城南门外地区，因为在日本政府的政令之下，开始大规模的迁葬，迁葬之因即为日本政府所实施的台南市都市计画，分为三个时期，萌芽期、开拓期、展开期，逐步的扩张台南市的都市范围，因此在取得土地的过程中，项城郊一代发展，台南府城南门外的墓葬区成为日至时期台南市南向发展的重心，经过坟墓迁移之后的土地，经过重新规划，行程教育、运动设施的专用地，日至时期台南府城南门外的墓葬景象，在透过日本政府的政治力量的迁葬之下，以及迁葬之后的建设，转变成学校与运动场，充满活力的区域。战争期间，因为战争需要，在台南府城南门外墓葬区的南侧建立台南军机场，因此在战争期间，台南府城南门外地区又带入军事的色彩，战后国民政府接收日本人撤退之后的所有建设，将空军后勤补给对进驻台南军机场，随之而来的眷属则占据日本人的宿舍，另外在新建多处的眷村，战后初期的眷村文化即进入台南府城南门外地区。

11. In the end, the effect mechanism of rainwater acidity, rainfall intensity, soil gradient and land using on pollutant generation, migration and transformation of pollution flow from soil-water interfaces were discussed.
      在此基础上，探讨了降雨雨水酸度、降雨强度、土壤坡度以及土地利用方式等对土水界面污染流污染物产生及迁移转化的影响机制。

12. The results show that unconformity surface pathway system becomes mainly way of oil and gas migration.
      结果发现，不整合面为该区油气运移输导的主要路径。

13. A multi-agent/mobile-agent platform, which stems from computational infrastructure agent grid has been designed and prototyped. As a node of grid, on each platform simulations of evolutionary processes of multi-nodes synchronous processing associated with individual inter-generation communication and individual migration between elementary populations can perform coadaptation based cooperative coevolution of the multi-population as a whole system, such as the case of the three species ecological system.
      各网格节点的计算环境都支持单/多种群进化过程仿真，可分别执行不同的演化算法，模拟特定参数集合制约下的协适应共进化过程，如三物种生态系统的可持续进化，已由多节点同步执行算法、代间通讯及子群间个体转移进行演化过程仿真。

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14. Neuroectoderm; neural crest; neural plate; neural tube; neuraxis; neuroblasts; neural stem cells; neuroprogenitor cells; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; neuroblastoma cells; cell migration; neurogenesis; development; developmental stages
      神经外胚层；神经脊；神经板；神经管；轴索；成神经细胞；神经干细胞；neuroprogenitor细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；神经节发生；胚胎发生；轴突发生；视网膜发生；神经胶质发生；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管缺陷；无脑；脊柱裂；成神经细胞瘤细胞；细胞迁移；神经发生；发展；发育阶段

15. migration的意思

15. Neuroectoderm; neural crest; neural plate; floor plate; neural tube; neuraxis; neuroblasts; neural stem cells; neuroprogenitor cells; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; cell migration; neurogenesis; development; developmental stages
      神经外胚层；神经脊；神经板；底板；神经管；轴索；成神经细胞；神经干细胞；神经母细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；神经节发生；胚胎发生；轴突发生；视网膜发生；神经胶质发生；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管缺陷；无脑；脊柱裂；细胞迁移；神经发生；发展；发育阶段

16. Neuroectoderm; neural crest; floor plate; neural tube; neuraxis; neuroblasts; neural stem cells; neuroprogenitor cells; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neural tube defects; anencephaly; spina bifida; neuroblastoma cells; cell migration; neurogenesis; development; developmental stages
      神经外胚层；神经脊；底板；神经管；轴索；成神经细胞；神经干细胞；神经母细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；神经节发生；胚胎发生；轴突发生；视网膜发生；神经胶质发生；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；神经管缺陷；无脑；脊柱裂；成神经细胞瘤细胞；细胞迁移；神经发生；发展；发育阶段

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17. Neuroectoderm; neural crest; neural plate; floor plate; neuraxis; neuroblasts; neural stem cells; neuroprogenitor cells; stem cells; differentiation; ontogeny; morphogenesis; histogenesis; organogenesis; synaptogenesis; gangliogenesis; embryogenesis; axonogenesis; retinogenesis; gliogenesis; glial progenitor cells; oligodendrocyte progenitor cells; retinal progenitor cells; nerve growth factor; neurotrophic factors; trophic factors; growth factors; neuroblastoma cells; cell migration; neurogenesis; development; developmental stages
      神经外胚层神经脊；神经板；底板；轴索；成神经细胞；神经干细胞；神经母细胞；干细胞；分化；个体发生；形态发生；组织发生；器官发生；突触发生；神经节发生；胚胎发生；轴突发生；视网膜发生；神经胶质发生；神经胶质祖细胞；少突神经胶质细胞祖细胞；视网膜祖细胞；神经生长因子；神经营养因子；营养因子；生长因素；成神经细胞瘤细胞；细胞迁移神经发生；发展；发育阶段

18. Objective: To explore the inhibitive effect and mechanism of Matrine on adhesion and migration of HeLa cells.
      目的：探讨苦参碱抑制HeLa细胞粘附和移动的作用及机制。

19. Our results demonstrate that chemokines present in the uterus can support pbNK cell migration through human endothelial and stromal decidual cells.
      我们的研究结果表明子宫中的化学因子支持pbNK细胞通过人的内皮和间质蜕膜细胞迁移。

20. danci.911cha.com

20. In 1987, melamine was demonstrated to be present in coffee, orange juice, fermented milk and lemon juice, originating from migration of melamine from the cup made of melamine-formaldehyde resin.
      在1987年，咖啡、橙汁、发酵牛奶和柠檬汁中发现含有三聚氰胺，其中三聚氰胺来源于使用三聚氰胺-甲醛制作的杯子。

1. the movement of persons from one country or locality to another

2. the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding

3. (chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule

4. a group of people migrating together (especially in some given time period)