查询词典 migrations

This paper deals with and summarizes the research and importance of ductile shear zones and presents the future direction and aim for the research of the ductile shear zones around the world. Four aspects of studies of the ductile shear zones have been proposed in this paper as follows:(1) The stress environment including the mineral assemblages, deformation, stress-shearing parameters;(2) The major element sequence and activation under condition of stress;(3) The variations of trace elements and REE, their transportation distributions under strong natural deformation as well as variations of mineral crystal parameters, which can also control the element changes during the ductile deformation;(4) The relationship between element migrations, activation and stress, which will present the new evidences for the studies of dynamic diagenesis and mineralization as well as the studies of evolution of ductile shear zones developed in middle and low levels.(5) The analysis of elements and isotopes in mylonites on the micro-scale are crucial for the understanding of component migrations during the mylonization.

对韧性剪切带及其变形岩石的研究现状和研究意义进行系统的综述，提出了未来韧性剪切带及其糜棱岩的研究方向和目标：①系统研究糜棱岩中主要造岩矿物组合及其变形特征，计算剪切变形岩石的应力－应变参数，搞清韧性剪切带所处的应力应变环境；②系统研究韧性剪切带岩石在天然分强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序问题；③系统研究剪切变形作用过程中岩石化学组成的微量和稀土元素变化，讨论强变形条件下岩石中微量元素活化和迁移规律，深入探讨微量元素迁移的动力控制，包括稀土元素配分变化的应力制约以及应变矿物晶格化学变化行为及其对其寄主的变形岩石元素在应变过程中迁移变化的制约和影响；④从理论上探讨天然强剪切应变条件下岩石中组分活化、转移与应力的因果联系，为深入探讨韧性剪切带动力成岩作用提供理论的科学依据，为探讨中、下地壳中韧性剪切带的形成和演化提供科学依据，同时为韧性剪切变形作用条件下成岩、成矿地球化学作用提供理论和实验依据；⑤现代分析技术如激光同位素原位分析以及激光ICP-MASS分析技术对研究变形域内的岩石的元素和同位素的活化迁移规律，对深刻揭示糜棱岩化过程中的元素活化迁移机制提供更高质量的地球化学证据具有重要的作用。

Taiwan aborigines are Austronesian speakers. Their origins, migrations and evolution are important research topics for anthropologists.

摘要 台湾原住民属於南岛民族，他们的起源、迁徙与演化一直是学者们研究的重要议题。

Bantu migrations between the 17th and 19th centuries brought the coastal tribes and later the Fang.

方后来产生了布比分支，他们从卡玛伦移民到比奥古。

The study is published in the Journal of Biogeography. From 2071 to 2100, nine out of 17 species examined are projected to face longer migrations, particularly birds that cross the Sahara desert, the study found.

这项在《生物地理学杂志》上发表的研究结果显示，在2071至2100年间，所研究的17种鸟类中有9种将面临更长的迁徙行程，尤其是需要飞越撒哈拉沙漠的鸟类。

This led to constant migrations of Indo-European people from the area between the Black and Caspian seas.

这导致了来自黑海和里海地区的印欧人持续不断地迁移过来。

Even if you are a city dweller, you can find some place, perhaps a park or a golf course, where you can observe the mysterious migrations of the birds and the changing seasons.

即使你是一个城市居民，你也能够找到某个地方，也许是一个公园或是一个高尔夫球场，在那儿能观察鸟类神奇莫测的迁徙和四季的交替。

Deep within the cliffside caves of eastern Borneo, 10,000-year-old paintings featuring the hands of the artists themselves may offer clues about ancient migrations.

在东部婆罗洲的洞穴深处的岩壁上，有着1万年前岩画，画的是艺术家们自己的手，这将有可能为研究古代移民提供线索。

Cobia make seasonal migrations along the coasts in search of water in their preferred temperature range.

因数使季节性迁移沿岸水在其首选的温度范围内的寻找。

Despite his disability, Crinkly has managed to survive seven migrations from breeding grounds on the Russian Arctic tundra. It means that he has flown over 21,000km.

尽管"克灵克雷"长相难以恭维，但它却在俄罗斯位于北极圈内冻土带极其寒冷的地方顽强地存活了下来，已经往返俄罗斯和英国7次，每年都会飞行3000多公里，其飞行总距离已经超过2.1万公里。

Migrations of heavily armed Arab cattle-herders into the lusher wetlands of the Dinka at the beginning of each dry season have caused violence for decades .

每年干燥季节一开始全副武装的阿拉伯牧牛人就迁移进入牧草更丰美的丁卡湿地，这导致了几十年的暴力冲突。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。