1)  spontaneous,polarization method
自发极化法
2)  spontaneous
自发
1.
Constitution is the Politics Community s Spontaneous Order;
论宪法是政治共同体的自发秩序
2.
Analysis on the National Health Plan & the Spontaneous P.E-Group of the College Students;
浅谈全民健身计划与大学生自发的体育群体
3.
A scientific experiment of brain computer interface based on spontaneous EEG is designed,which is produced by motor imagination and used as the control signal.
针对基于自发脑电信号的脑机接口研究,设计了一种科学的且易实现的运动想象实验范例,利用运动想象脑电作为BCI的控制信号。
3)  spontaneity
自发
1.
Consciousness and Spontaneity of the Contemporary Civil Society;
当代市民社会发展的自觉与自发
2.
The development of literature characterized by Feminism is a course from spontaneity to self-awareness in China s contemporary literature.
女性主义文学的发展在中国现当代文学中经历了一个从自发到自觉的过程。
3.
As two states of human being s existence and development,consciousness and spontaneity exist in every aspect of society and history of human being.
自觉与自发作为人存在发展的两种状态呈现于人类社会历史的各个领域之中,自觉性作为人存在发展的内蕴指向不断扬弃自发性而实现自身,而自发性作为自觉性的前提和基础不断为人的发展提供新的领域和契机。
4)  spontaneousness
自发
1.
Consciousness and spontaneousness:as shown in the market economy;
自觉与自发:以市场经济为例
5)  spontaneous formation
自发形成
1.
The effects of mixed ratio and concentration on the spontaneous formation of vesicles in a cationic cetyltrimethylammonium bromide (CTAB) and anionic sodium dodecylbenzenesulfonate (SDBS) system were investigated.
讨论了十六烷基三甲基溴化铵/十二烷基苯磺酸钠(CTAB/SDBS)复配比例、体系浓度对其囊泡自发形成的影响和不同制备方法与放置时间对囊泡尺寸的影响,同时用TEM考察了囊泡的结构与形态。
6)  spontaneous emission
自发辐射
1.
Enhancement and suppression of the spontaneous emission of a two-level atom in a photonic crystal with a state-conservative photonic pseudogap;
具有态守恒赝隙的光子晶体中两能级原子自发辐射的增强与抑制
2.
Affects of loss and spontaneous emission to output characteristics of on Yb~(3+)-doped double-clad fiber lasers;
光纤损耗和自发辐射对掺镱双包层光纤激光器的影响
3.
spontaneous emission of free electron laser with an electrostatic wiggler;
静电摇摆器自由电子激光的自发辐射
参考词条
补充资料:自发极化
分子式:
CAS号:

性质:在一定温度范围内、单位晶胞内正负电荷中心不重合,形成偶极矩,呈现象极性。这种在无外电场作用下存在的极化现象称为自发极化。当施加外界电场时,自发极化方向沿电场方向趋于一致;当外电场倒向,而且超过材料矫顽电场值时,自发极化随电场而反向;当电场移去后,陶瓷中保留的部分极化量,即剩余极化。自发极化与电场间存在着一定的滞后关系。它是表征铁电材料性质的必要条件。铁电陶瓷、压电陶瓷,如钛酸钡晶体BaTiO3等具有自发极化。利用材料的这种性质,可制作电子陶瓷,如电容器及敏感元器件。

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