迁移

Before volatilizing into the atmosphere, organic pollutants in soil body have to migrate to soil surface.

有机污染物需要先从土壤深层迁移至地表，然后挥发至大气，在土壤中迁移的速率较慢，控制着整个挥发过程，可用Fick 第二定律来描述。

Just why they took so long to travel north is not clear, but many researchers have suggested that the bone-dry Sahara Desert was a major barrier to migrations from the south.

至于人类究竟为什么在这么长时间之后才开始朝北迁移，原因尚不清楚。然而，许多研究人员提出，极为干燥的撒哈拉沙漠是自南向北迁移的主要障碍。

In OWE-SOJ test, a fluffy colony without clampconnection formed in the A=B≠mating interaction where nuclear migration occurs, whilea barrage colony without clamp connection formed in A≠B= interaction where nuclearmigration do not occur. The two colonies could be distinguished clearly from each other.

而在OWE-SOJ试验中，发生核迁移的A=B≠交配反应形成无锁状联合的绒毛状菌落，而不发生核迁移的A≠B=反应形成无锁状联合的栅栏型菌落，两种菌落可以清楚地区别开来。

In OWE-SOJ test, a fluffy colony without clamp connection formed in the A=B≠ mating interaction where nuclear migration occurs, while a barrage colony without clamp connection formed in A≠B= interaction where nuclear migration do not occur. The two colonies could be distinguished clearly each other.

而在OWE-SOJ试验中，发生核迁移的A＝B≠交配反应形成无锁状联合的绒毛状菌落，而不发生核迁移的A≠B＝反应形成无锁状联合的栅栏型菌落，两种菌落可以清楚地区别开来。

The favorite pathway of the migration is a translation to the nearest cross-bridge site, with a rotation through 30°simultaneously.

同时给出了迁移途径中乙炔分子的碳碳键长，碳氢键角等结构参数在迁移过程中的变化。

Different non-directional cell migration,but migration of cells in the same direction is constant.

不同的细胞有不定向的迁移，但同一个细胞的迁移的方向是恒定的。

For the oxidation channel from OH group migration to O atom insertion,the activation energy barriers for OH migration are 58.4,65.3, and 79.2 kcal/mol,respectively,whereas those for O atom insertions beginning with directly destroying Si_a-Si_s backbonds by a foreign H_2O molecule are much lower,the respective values are 19.0,16.7,and 24.8 kcal/mol.

对于先经过OH迁移致使O原子插入Si_a-Si_s backbond的氧化途径，OH迁移所克服的能垒依次为58.4、65.3和79.2 kcal/mol，而H_2O以O原子进攻Si_a位来打开Si_a-Si_s键进而使O原子插入的能垒则相对较低，仅为19.0、16.7和24.8 kcal/mol。

In later period, NSCs in the brain parenchyma are significantly reduced, and gradually migrates into the choroids plexus of the lateral ventricle and capillary of brain surface, which are digested by endothelial phagocytes.

移植后期脑实质内存活的神经干细胞明显减少，大量迁移到侧脑室脉络丛和脑表面微血管内，被内皮吞噬系统消化。关键词：人胚神经干细胞；脑梗死；细胞分化；迁移

Interlayer oxidized zone can be divided accurately by Fe_2O_3, Fe_2O_3/FeO and U parameters. We can correct the field macroscopic color zoning by combining the macroscopic zoning and microscopic zoning. Univalent major elements components(Al_2O_3, SiO_2, K_2O, Na_2O) show remarkable activity at the process of interlayer oxidizing, their contents are variable and mingled in different zones and it can't be used in zoning. But we can speculate the developmental degree of interlayer oxidized zone and uranium mineralization according to the concentration trends and variation characteristics of sensitivity group, activity group and their ratios .(3)The comparatively steady elements such as lithiphile elements, sulfophile elements and high field strength elements change regularly at the process of interlayer oxidation except some radioactive elements. Trace elements and rare earth elements commonly enrich in thin rock clast such as mudstone, in which the enriched elements species are more than those in the whole rock, which indicate that the regeneration action in caulking matter are more deep than that in whole rock at the process of interlayer oxidation, and the reallocate intention of trace elements in main minerlized rock in Tuha basin are more intensive than that in Yili basin at the process of deposition ,diagenesis and later changes .

根据化学蚀变参数PC值和分离迁移位等将常量元素组分分为敏感组分组、活动组分组、次活动组分组和惰性组分组，不同组分可分别用于讨论层间氧化带低温地球化学中不同问题；敏感组分(变价元素组分Fe_2O_3、FeO)和U在层间氧化带中迁移富集规律明显，Fe_2O_3／FeOFe~(3+／Fe~(2+)比值具分带判别能力，配合U含量对层间氧化带进行较准确的分带，可克服野外宏观颜色分带偏差：提出Fe~(3+)／Fe~(2+)分带判别值在不同盆地、不同地段不同，除受氧化作用控制外，流体酸碱度不同也是重要因素的观点，对找矿实践有实际指导意义；活动组分(Al_2O_3、SiO_2、K_2O、Na_2O)在层间氧化作用过程中具有较明显的活动性，其含量值变化跳跃，在不同分带相互交织，不具分带指示意义；但利用敏感组分、活动组分及其比值在层间氧化带中的变化特征可推测层间氧化带发育的完善程度及其含矿性；次活动组分组(CaO、MgO、MnO_2)含量低，变化规律性差；惰性组分组(TiO_2、P_2O_5)含量低，活动稳定，可用来反映沉积物源特征。

However, for both the coculture and control groups, there is no significant difference between the measurements at 3 and 6 hours.

M iler细胞迁移的实验；M iler细胞迁移，除了3h和6h之外，在其他各时间点之间差别有统计学意义。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。