A member of a South American Indian Indian people in Peru.

1、

The American Indian society has develops very slowly because of the American history.

由于历史的原因，美国印第安人社会发展缓慢，在相当长的时间内，他们过着原始部落制的生活。

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2、

Some of the most interesting names came from American Indian languages.

一些非常有趣的名字是来自美洲印第安语。

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3、

Love Medicine: Conflicts and Synergies between American Indian Culture and White Culture

《爱药》：印第安文化与白人文化的冲突与融合

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4、

He believed that the American Indian would quickly disappear.

他深信这些美国印第安人必将很快地消失。

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5、

American Indian symbols of happiness, life, and freedom.

这些都是象征幸福、生命和自由的美国印第安人符号。

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6、

The Relation between Man and Nature in North American Indian Myths

北美印第安神话中人与自然的关系

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7、

Name one American Indian tribe in the United States.

请说出一个美国印第安人部落的名字。

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8、

On the Factors Influencing the Changing of American Indian Literature

论美国印第安文学演变历程中的内外因素

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9、

A Study on Development of American Indian Higher Education in Reservations

美国印第安保留地高等教育发展研究

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10、

The influence of nano-TiO_2 on photo oxidative degradation of PP in artificial accelerated UV light weathering and natural weathering were studied by mechanical properties monitoring and scanning electronic microscopy ( SEM).

通过分析PP/TiO2共混纤维在人工加速紫外光降解和自然光降解过程中拉伸断裂伸长率和表面形态的变化情况，从而研究了共混纤维中锐钛矿型纳米二氧化钛对聚丙烯纤维光氧化降解性能的影响。

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11、

依据相关国家标准对样品进行耐沾污试验与人工气候老化加速试验，测试老化与沾污前后样品半球发射率与太阳反射比的变化。

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12、

Artificial weathering ageing resistance, staining resistance, acid resistance of coating film, coating operational test and applied operation technique for water based polyurethane acrylate compounded exterior wall coating are presented.

介绍了涂膜耐人工气候老化性、耐沾污性、耐酸性和涂料施工性试验，以及水性聚氨酯复合外墙涂料的施工应用技术。

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13、

The chamber is able to create a hot and humid environment, ozone environment and ultraviolet radiation environment, thus to cope with the corresponding artificial weathering accelerated aging test.

试验箱能产生湿热环境、臭氧环境和紫外线辐射环境，以进行对应的人工气候加速老化试验。

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14、

Two artificial weathering tests were conducted according to different standards, and correlations between outdoor exposure test and artificial weathering tests were compared.

并根据不同的试验标准进行了两种人工气候老化试验，比较了这两种方法与自然气候暴露试验结果的相关性。

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15、

" Rubber, vulcanized-Test method of resistance to artificial weathering ( xenon are lamp)"

GB/T12831-1991硫化橡胶人工气候（氙灯）老化试验方法

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16、

An equation in which the highest power of an unknown quantity is a square.

未知量的最高幂是平方的等式。

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17、

The vibration vectors from the capacitance transducers were analyzed, and the moment equation about the centrifuge rotor is created, in which the aerostatic bearing rigidity is an unknown quantity.

分析电容测微仪输出的振动矢量，建立以气体静压轴承刚度为未知量的离心机转子的力矩方程。

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18、

The problem is that in both opposing Mr Obama and putting distance between himself and President Bush, Mr McCain became an unknown quantity and hence a risk.

问题在于麦凯恩既要对抗奥巴马，又要与布什拉开距离，他因此成为了一个未知数，因而也是一个风险。

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19、

Under the physical coordinate, the horizontal displacement is taken as an unknown quantity, and a nonlinear problem with big displacement of solid mechanics is introduced.

采用物质坐标，用水平位移作为基本未知量，成为固体力学的非线性大位移问题。

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20、

The new teacher is still very much an unknown quantity but we have hopes that he will is a valuable member of our team.

新教师是谁现在还难以预料，但我们希望他会成为我们队里的重要一员。

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