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Aniline compounds containing heptafluoroisopropyl was synthesized through taking sodium dithionite as evocating agent, and introducing heptafluoroisopropyl by free radical electrophilic substitution on benzene ring.

以连二亚硫酸钠为引发剂，在苯环上通过自由基亲电取代反应引入七氟异丙基，合成了一系列含七氟异丙基的苯胺类衍生物，研究了各种条件对反应的速度和收率的影响。

Aimed at the needs of divagation in virtual environment, we define the position chain, time chain, zooming chain and virtulized chain. Also, a divagation strategy is proposed for vitural panorama space containing position relationship, time relationship, zooming relationship and virtualized relationship.

针对基于图像的虚拟全景空间漫游的需要，在定义位置链、时间链、焦距链和虚化链等链表结构的基础上，提出了一种包含位置关联、时间关联、焦距关联和虚化关联的大规模虚拟全景空间漫游策略。

However, divalent metal cutions containing complexes were found to be stabilized significantly in the water solution.

一般的，一价金属阳离子在水中与DTP的反应情形与在气相中的相似，但二价金属阳离子在水中的产物更为稳定。

They all contains the extracellular highly divergent region with the 16AA sequence which can induce infertility in female mice, and the GST-144AA is shorter than GST-174AA with a deletion of 30AA at the C terminal of GST-174AA containing the structure of the three continuous serine.

二者都包含了上述与APP无同源性的127AA区域以及能引起雌性小鼠不育的16AA顺序，但GST-144AA较GST-174AA的C端缺少包含3个Ser在内的30个AA。

These experimental results indicate that the DNP technique is apowerful method to study organic solid materials containing unpairedelectrons.

利用DNP技术对碳纤维和中国煤样品进行了DNP增强下的固体高分辨NMR研究，DNP直接增强下采得的谱表明在这些样品中未配对电子局域于样品的芳环上，说明DNP方法是研究含自由基有机固体材料的有力手段。

This paper considers the moment problem for modules over principal ideal domain containing existence and uniqueness of solution.

研究主理想环上模的矩量问题，包括矩量问题的存在性和唯一性。

Objective: To investigate anatomic relationship between the deep peroneal nerve and dorsalis pedis artery on the dorsum of foot, and provide basis for the preparation of the dorsalis pedis compound flap containing neurovascular pedicle.

目的：探讨腓深神经和足背动脉在足背部的位置关系，为带神经血管蒂的足背复合组织瓣的切取提供解剖基础。

As used herein, an unsaturated hydrocarbon is defined as a hydrocarbon containing an isolated carbon-carbon double bond.

本文所使用的不饱和烃定义为含有一个孤立碳碳双键的烃。

"Olefin Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double Bond."

烯烃：含有一对或多对由双键连接的碳原子的一类不饱和烃。

"Olefin Any unsaturated hydro carbon containing one or more pairs of carbon atoms linked by a double bond."

烯烃：含有一对或多对由双键连接的碳原子的一类不饱和烃。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了