查询词典 migration

Immigration, Ethnicity, and Internal Migration:1American Journey: The Asian-American Experience,1997; 2American Journey: The Hispanic-American Experience,1996; 3American Journey: The Immigrant Experence,1997

和网络时代到来以前的纯文字纸媒时代的美国问题研究相比，网络时代的研究条件要好上百倍，工作效率大幅度提高。

The heavy mudstone layers in Third Member of Shahejie Formation (Es3) provide favorable hydrocarbon source rock and cap formation, diabase and hornfels belts serve as reservoirs, faults and microcracks in the wall rocks as the pathways for oil and gas migration.

沙三段厚层生油岩为火成岩储层提供了良好的烃源岩和封盖层；辉绿岩及角岩带为主要的储层带；断层及围岩中的微裂缝为油气运移提供运移通道。

Freedom of movement and migration is a basic human right and a sign of China's development and progress.

行动和迁移的自由是一项基本人权，也是中国发展和进步的一个符号。

The degradating and redistributing of ECM were migration of VSMC and vascular remodeling through inhibiting the production of PDGF-BB and the activation of MMPs so to prevent the vascular stenosis.⑤Orthotopic hybridism in situ: The expression of MMP-3 increased after operation, the tendency and intensity were parallel to the expression of NF-κB. Tongxinluo could decrease the expression of MMP-3 and NF-κB. The study showed that the producting and activating of MMP-3 were modulated by NF-κB. The inhibition to the producting and activating of MMp-3 of Tongxinluo was mediated by inhibiting the activating of NF-κB. Conclusion ①The rabbit vascular stenosis model could be established successfully by plain balloon damage, the operation process was easy, economical and practical.

①单纯球囊损伤可成功建立典型家兔血管狭窄模型，操作方法简单，经济实用；②以VSMC增殖、迁移为主的内膜增厚以及以ECM降解、合成与再分布所致的血管重构是导致受损血管狭窄的根本原因；③通心络能明显抑制VSMC的增殖、迁移和ECM降解、合成，阻止血管内膜增生和血管重构，防止受损血管狭窄；该作用可能与其减少和阻止PDGF-BB的产生和活性，以及抑制MMPs的表达和恢复MMPs/TIMPs平衡有关；④通心络能显著抑制球囊损伤后血管内膜增生和血管重构，可能与其保护血管内皮，改善内皮功能，增加血清NO含量有关；⑤通心络抑制内膜增生和血管重构，减轻受损血管狭窄，还可能是通过抑制NF-κB的活化途径而起作用的。

Wave-equation datuming can make the frequence-division stack method, which is depended on hyperbolic type, to be used in deep layer data; and make migration on the datum-level to be high efficient and accurate.

在对具有深层复杂地质特征的实际资料的处理中见到了效果。

Comparison of the experimental results with those reported for SiH/sub 3/CN and GeH/sub 3/CN, 4.7 and 5.0MHz, we propose that, in stead of hyperconjugation, the migration of CN .pi.

比较实验结果与SiH/sub 3/CN的4.7MHz和GeH/sub 3/CN的5.0MHz，我们推论CN的。pi。

On the basis of gas migration equation -Darcy Law,coal seam gas content equation -parabola equation ,ideal gas state equation and the continuity equation s of the gas flow,a dynamic model of gas unilateral flow in the coal seam is set .

根据基本假设，对煤层瓦斯流动规律进行了研究，运用瓦斯运动方程—达西定律、煤层瓦斯含量方程—抛物线方程、理想气体状态方程以及气体流动的连续性方程，建立了煤层单向瓦斯流动的动力学模型，并根据边界条件和初始条件，对动力学模型进行了求解，推导出煤壁单位面积的瓦斯涌出量的计算公式，分析了瓦斯涌出量的影响因素，利用测得的数据，进行了实例计算，并用vc编制了计算机程序。

Be- cause of noisy data,the linearization of nonlinear problems,and in- adequate parameterization of the model,migration velocity analysis is thought to be ill-posed and ill-conditioned.

但由于非线性问题的线性化、噪声及不具物理意义的模型参数化假设，偏移速度分析是不适定和病态的。

Those products,in imine or enamine form,can tautomerize via hydrogen migration.

水催化对反应产生影响，水的参与使得能垒大大降低。

The journal well informs the research advances in all areas of immunological research, including cellular immunology, allergy, antigen presentation, infection, autoimmunity, lymphocyte migration, immunogenetics and mucosal immunology etc.

该杂志全面提供了免疫学研究在各个学科领域的研究进展，包括细胞免疫学，过敏症，抗原介导，传染病，自身免疫性，淋巴细胞移植，免疫遗传学以及粘膜免疫学等等。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。