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Mathematics model of dielectric under uniform electric field is built up, and total current is separated into three parts such as conductive current, instantaneous current and relaxation polarization current, then polarization and depolarization of linear and non-linear dielectric are simulated under step excitation, the results show that nonlinearity of non-linear conductivity is reflected by measuring surface potential attenuation during the process of self-discharge of non-linear dielectric.

论文首先对处于均匀电场下的电介质进行电路建模，把电介质的总电流分为电导电流、位移极化电流和松弛极化电流三部分来分析，然后以此为基础利用Matlab软件中的Simulink平台对直流阶跃激励下线性和非线性绝缘介质的极化和退极化过程进行了仿真，结果表明可以通过测试非线性绝缘介质自放电过程的表面电位衰减来反映其非线性电导的非线性程度信息。

The value of a raw string literal is the string composed of the uninterpreted characters between the quotes; in particular, backslashes have no special meaning and the string may span multiple lines.

原始字符串字面值表示的值就是由反引号之间的字符组成的字符串。特别是，原始字符串中反斜杠没有特殊含义，可以跨跃多行。

The variational relations of the first internal excited state energy,the excitation energy and the frequency of transition spectral line between the first internal excited state and the ground state of the electron which is strongly coupled with phonon in an asymmetry quantum dot with the transverse and longituainal effective confinement length of quantum dot and the electron-phonon coupling strength were studied by using a linear combination operator and the unitary transformation methods.

采用线性组合算符和幺正变换方法研究非对称量子点中与声子强耦合的电子的第一内部激发态能量、激发能量和第一内部激发态到基态的跃迁谱线频率随量子点的横向和纵向有效受限长度，电子-声子耦合强度的变化关系。

The completion of the Pinghan Railway (Beijing-Hankou) made Zhengzhou, a previously unnoted county town, into a major transportation hub. In 1954, the new People's Republic of China government moved the capital of Henan from Kaifeng to Zhengzhou.

平汉铁路建成后，郑州从昔日的边缘小镇一跃成为重要的铁路交通枢纽，地位越来越重要。1954年，中华人民共和国中央政府决定将河南省的省会由开封迁移到郑州。

When electron spins were unpolarized, the dependence of the low-lying energy of the barrier Li QD on an external magnetic field B and the distance d was obtained.

研究表明，当电子自旋为非极化时，束缚锂量子点的低态能谱受磁场B和距离d的影响，其最低态角动量L随B和d的变化而跃迁，并从动力学方面进行了分析。

In this sense, he reveals that Chinese renaissance and personal salvage becomes an unreversed tragic road along. No one could keep complete and pure humanity in this unprecedented history salvage. Either they keep pure and place in the bottom or they promote and lose their complex humanity.

在这一点上，周跃潮揭示了中国走向复兴和个人拯救的进程已经成为一种不可逆转的悲剧性道路，没有人能在这场史无前例的历史救赎中保存完整而纯真的人性，他们或者纯真地处于底层，或者因上升而走向这个时代复杂的人性迷失。

They are trying to adapt and meet the legal requirements of parties' with team cooperation, combination of advantages and resource sharing, so that they can maintain the lawful rights up to the hilt.

跃平人秉承"齐心飞跃，诚求公平"的服务精神，以"正义、诚信、严谨、务实"的执业态度，用法律关怀人，并通过集体协作、优势组合、资源共享来适应、满足来自不同背景的国内外当事人的法律需求，最大限度地维护其合法权益。

This showed that the main peak position of the transmission light is between 530-540 nm, and the color saturation is about 80%. The dense green color of the uvarovite sample is caused by its higher color saturation. The theoretical analysis of the mechanism of the green coloring of uvarovite indicates that the transition of 3d-orbital electron in the Cr(superscript 3+) is responsible for the green color.

采用紫外－可见光分光光度计对样品进行吸收光谱测试，对其颜色指数进行了定量分析，所得样品颜色的主波长为530~540 nm，饱和度为80%左右，进而分析了钙铬榴石的颜色主要由Cr(上标 3+)引起，其呈色机理归因于Cr(上标 3+)的d轨道电子跃迁。

The green emission may correspond to the electron transition from deep oxygen vacancy level to the valance band.

该发射峰强度依赖于氧分压的事实表明：514nm绿光发射峰与ZnO薄膜中的氧空位缺密切相关，认为它来自于氧空位缺陷深施主能级上的电子到价带顶上的跃迁。

But the Shanghai native, 27, has vaulted into a unique new role in the past year.

但上海人，27岁，已一跃成为一个独特的在过去一年中的新角色。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。