查询词典 migration

In this paper, we research the imaging problems beneath volcanic area. We sort common asymptotic conversion point gathers and perform velocity analysis to establish the initial velocity which will be used in PSTM. By scanning migration velocity and V p/ V s, we get the optimum migration velocity and

本文针对火山岩地震屏蔽层的转换波成像问题，通过对转换波共近似转换点道集进行速度分析，建立了转换波叠前时间偏移的初始速度场，通过速度扫描和纵、横波速度比值扫描确定最佳的偏移速度场和纵、横波速度比值，实现了在火山岩高速层覆盖区域的转换波偏移成像。

It was indicated that the effect of crystal orientation on interfacial stability is because of the different atomic bond number formed in the solidification of liquid atoms on different crystal planes, which affects the decrease of system energy, and affects the effective jump frequency of liquid atom migration to solid interface and solid atom migration to liquid, and finally affects the solute distribution in the front of liquid-solid interface and composition undercooling.

研究表明，晶体取向对凝固界面稳定性的影响是由于液相原子在不同晶面结晶面上沉积时形成的原子键不同，影响了系统自由能的降低，影响了液相原子迁移至固相界面上的有效跳动频率和固相原子迁移至液相中的有效跳动频率，影响了液固相界面前沿的溶质分布和成分过冷所致。

Rudolf Blasius and Gustav von Hayek developed a grand plan for a multi-nation program on avian migration in Europe, obtained the support of Crown Prince Rudolf of Austria-Hungary, and announced the 1st International Congress of Ornithology in Vienna, April 1884 which was dedicated largely to migration studies.

Rudolf Blasius 和 Gustav von Hayek制定了一个欧洲多国合作研究鸟类迁徙的宏伟计划，并得到了匈牙利-奥地利王储的支持。

Preserved-amplitude migration ; One-way wave equation ; Fourier finite difference ; Migration operator ; Boundary conditions ; Imaging conditions

保幅偏移；单程波方程；傅里叶有限差分；偏移算子；边界条件；成像条件

Because he has the spine because of migration and migration buttocks.

原因是他的脊椎已经因为臀部的偏移而偏移。

Basing on nitroester migration theory in combustible cartridge case during its long storage, the method of using indicator strip to determine extent of nitroester migration was suggested.

文摘：根据半可燃药筒在长期储存过程中硝酸酯的迁移原理，提出一种利用指示剂带检测硝酸酯迁移量的方法。

Not only the class polarization in the process of Hans migration localization accelerated the development of landlord economy, but also accelerated the social changes of Yunnan. Especially, Hans migration accelerated that the clerisy class diffusely rose, improved the population diathesis and exerted a great influence in Yunnan society. All stroke Tu Si politics and established region base, economy base, thinking base and culture base for unify politics.

汉族移民进入云南促使汉族人口急剧增长；形成了民族杂居、民族融合；导致了汉化倾向更加明显；推动封建地主经济迅速发展并冲击土司政治的经济基础；引起了云南知识分子士绅阶层的兴起、汉文化和儒学的广泛传播、以"大一统"为核心的中华整体发展观深入各民族人心等因素的共同作用，从而奠定云南更全面地实行一体统一政治的地域基础、经济基础和思想文化基础，推进云南社会与祖国内地整体发展步伐的加快。

The recombinant eukaryotic expression vector pcDNA3.1-Myc-His B/tPA can stable express tPAcDNA in transfected hUVEC cell strains and can secret compt tPA protein. Experiment III The Effects of Transfected tPA Gene on Vascular Smooth Muscle Cells Proliferation and Migration in VitroObjective To investigate the effects of transfected tPA gene on vascular smooth muscle cell proliferation and migration in vitro and to provide a basis for further study on preventing vein graft restenosis.

结论构建的pcDNA3.1-Myc-HisB/tPA基因新型真核表达载体，能在HUVEC中表达，其表达具有高拷贝、稳定性好的特点，获得的表达蛋白活性较高，提示本载体和稳定表达tPA基因的人脐静脉内皮株能够作为基因治疗工具用于哺乳动物的实验研究。

The comparison of time spent on MSA migration in deeper glacier ice of Antarctic Peninsula and that in the surface infiltration congelation ice of mid latitude glacier suggests that the quick formation of interlinked network of veins in ice, higher temperature and more water content of the ice probably may sever as the promoting factors for the MSA migration.

南极半岛 MSA迁移过程需要很长时间，而表层渗浸-冻结冰层中 MSA迁移过程很快出现，说明冰中脉状纹理的加快形成、较高冰川温度和冰层中的较大含水量等因素会对 MSA"迁移"进程起促进作用。

Domestic research involved in three aspects which was the non-voluntary migration, tourism labor migration, consumption-oriented tourism immigrants.

国内研究在非志愿移民、旅游劳工移民、消费导向旅游移民三个方面有所涉及。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷