极性

Then he designed a segmented conductor that supplied current to the wheel mounted electromagnet, and the sections reversed the current at the right time to cause the polarity to reverse automatically, and caused the wheel not only to complete one revolution, but also to rotate continuously.

然后，他设计了一个分割导体的电流供应的车轮安装电磁铁，以及部分扭转目前在合适的时间造成的极性自动扭转，并造成车轮不仅要完成一个革命，而且还不断地旋转。

The improved positively and negatively corona charged PTFE film electrets not only have a comparable charge storage density but also similar rule for their charge storage and decay in certain temperature region.

经改性后的正、负极性PTFE薄膜驻极体不仅具有相近的电荷储存密度，而且在一定的温度区间内它们的电荷储存和衰减呈现类似的规律。

A New type of benzoxzine precursors was systhesized based on methoxy methylene diphenyl ether oligomer.The struture of product was characterized by IR and H-NMR analysis and effects of solvent polarity,temperature on the precursor composition were investigated.

以甲氧基次甲基二苯醚低聚物为基础合成了苯并口恶嗪预聚物，用H－NMR、IR表征了该预聚物的结构，讨论了反应温度、溶剂的极性等因素对合成预聚物的结构和组成的影响。

It was found that the homogeneous orientation tendency of azobenzene was a common phenomenon in the self-assembled films fabricated by electrostatic layer-by-layer dipping process of the side-chain azo polyelectrolytes and poly(diallyldimethyl ammonium chloride); substituents that link to azobenzene have influences on the orientation of azobenzene in self-assembled films,which could be attributed to charge interaction and dipolar interaction between the chromophores and the polycation substrates.

研究表明，侧链型偶氮聚电解质自组装膜中偶氮生色团普遍存在一定程度的沿面取向。偶氮生色团所带端基的类型对其在自组装膜中的取向程度有较大的影响，这主要取决于偶氮生色团与聚阳离子基底的电荷相互作用和极性相互作用等。

It was found that the homogeneous oriention tendency of azobenzene was a common phenomenon in the self-assembled films fabriemed by electrostatic layer-by-layer dipping process of the side-chain azo polyeleetrolytes and poly (diallyldimethyl armnonium chloride):suhstituents that link to azobenzene have influences on the orientmion of azobenzene in self-assembled films,which could be attributed to charge interaction and dipolar interaction between the ehromophores and the polycation substrates.

研究表明，侧链型偶氮聚电解质自组装膜中偶氮生色团普遍存在一定程度的沿面取向。偶氮生色团所带端基的类型对其在自组装膜中的取向程度有较大的影响，这主要取决于偶氮生色团与聚阳离子基底的电荷相互作用和极性相互作用等。

The compass is a direction finding device based on the principle of north-south alignment of the earth's magnetic field.

指南针是利用磁铁在地球磁场中的南北极性而造成的指向仪器。

It has been tested that the current of VCM islinear to its displacement, and this testifies that the dynamic measurement method,getting the displacement of VCM by its current, is feasible.

实验结果表明电机中所通电流与电机的移动距离之间具有单调线性的关系，这说明了通过电流的大小和极性来确定音圈电机移动距离和方向的动态测量方法是切实可行的。

This paper introduces the new concept—— electrode potential axis used in the electrochemical redox reaction.

介绍了一种电化学中氧化还原反应的新概念——电极电位轴，它对电池的电动势、极性、电子流动方向以及相关的化学反应的描述很直观，是一种较为理想的判断氧化还原反应的方法。

Then proper adsorbent and corresponding conditions or combining of different adsorbents should be chosen on practical needs.

所以，在实际生产中可根据需要进行树脂和相应的溶液条件选择或不同极性树脂的组合选择。

Compared to the flat culture, cells in 3-D culture more closely mirror what happens in living organisms in morphology, cell alinements, polarization, microenviroments, gene expression pattern and other biological characters. Therefore,3-D culture is useful to investigate the molecular mechanism of nasopharyngeal carcinogenesis.

因与传统的二维培养相比，细胞在三维培养中的形态、排列方式、极性及微环境更接近于体内状态，其基因表达和生物学行为也更接近于体内状态，因而建立能反映鼻咽癌发病不同时期的体外三维培养模型对于鼻咽癌的发病机制研究具有重要价值。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新