as an important raw material of the organic chemical, cyclopentene is widely used in pharmaceutical industry, organic synthesis and synthetic rubber and other fields.

1、

an electron momentum spectroscopy investigation on the 1a ′ inner valence orbital of cyclopentene

环戊烯分子内价轨道1a′的电子动量谱学研究

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2、

it is the obscure hardbacks that are valuable.

有价值的是那些不出名的精装书。

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3、

that may be cheaper than the hardbacks, but the gap should be wider.

这或许要比精装书便宜，可二者的差价应该再大一些才是。

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4、

just a year earlier hardbacks had been worth more than three times as much ase-books, according to the association of american publishers.

据美国出版商协会统计，仅仅一年之前精装书的销量还是电子书的三倍，但现在亚马逊售出的电子书拷贝要多于纸质书。

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5、

subterranean heat exchangers for experimental study in ground source heat pump system

地源热泵实验研究用地下换热系统

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6、

distributing regulation and exploitation proposals of subterranean heat resources in weinan urban

渭南城区地热资源分布规律与开发建议

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7、

a prohibitory rule against dogs entering the public gardens

禁止狗进入公园的法令

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8、

if further injuries are to be feared, the person entitled may seek a prohibitory injunction.

倘若侵害有加剧之势，权利人可以提起不作为之诉。

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9、

experimental results show that the prohibitory signs can be detected quickly and exactly in this method.

实验结果表明，此方法能准确并较为快速地实现警告标志检测。

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10、

violating applicable restrictive or prohibitory provisions of the regulations prescribed by the competent authority under article 70.

违反主管机关依第七十条所定规则有关限制、禁止之规定。

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11、

based on the reaction product pentanal, pentanol, pentanoic acid, amylamine, 2-propyl heptanol and so on could also be generated, which mentioned above are all currently demanded chemicals for domestic and foreign.

由其反应产物正戊醛出发，可以进一步生成正戊醇、正戊酸、正戊胺、2-丙基庚醇等，均为目前国内外需求旺盛的化学品。

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12、

crystal structure of β-trypsin complex with amylamine in cyclohexane

环己烷中牛胰蛋白酶与正戊胺复合物的晶体结构

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13、

seen edge-on, the island universe spans about 100, 000 light-years, similar in size to our own milky way.

这个侧边向着我们的岛宇宙直径约10万光年，与我们银河系大小相仿。

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14、

island universe: a galaxy other than the milky way.

原文为岛宇宙，即河外星系。

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15、

the island universe is about 50, 000 light-years across and lies some 60 million light-years away toward the constellation aries.

这个岛宇宙大约有5万光年宽，位于白羊座内，距离我们约6,000万光年远。

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16、

explanation: nearly 50 million light-years away in the constellation ursa major, ngc 4013 was long considered an isolated island universe.

说明：位于大熊座，距离地球五千万光年远的NGC4013，长久以来一直被认为是个孤立的宇宙岛。

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17、

the lovely island universe resides in the large virgo cluster of galaxies.

这个美丽的宇宙岛处在巨大的室女星系团中。

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18、

the effect is further enhanced in this sharp image by galaxies that lie beyond the gorgeous island universe.

在这张图像中位于这片华丽的宇宙岛后侧的星系更增强了这种效应。

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19、

the effect is further enhanced in this well - framed view by the galaxies that lie beyond this gorgeous island universe.

这个效果进一步被存在于这个灿烂的岛宇宙之外的星系的充分限定的视野加强。

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20、

this sharp view of the gorgeous island universe shows off a striking yellow nucleus and galactic disk with tightly wound spiral arms.

这张这个壮丽宇宙岛的清晰影像，突显了黄色的星系核心和紧缠的漩涡臂。

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