spontaneous symmetry breakdown是什么意思

用法例句

Constitution is the Politics Community s Spontaneous Order;

论宪法是政治共同体的自发秩序

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

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。

Consciousness and Spontaneity of the Contemporary Civil Society;

当代市民社会发展的自觉与自发

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。

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。

Consciousness and spontaneousness:as shown in the market economy;

自觉与自发:以市场经济为例

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。

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

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

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

Latest studies on spontaneous dispersion of metal compounds in zeolites;

金属化合物在分子筛上自发分散的研究进展

An inorganic SiO2-TiO2 precursor having Si-O-Ti bonds similar to those present in titaniumsilicate molecular sieve was prepared through spontaneous dispersion of Ti(SO4)2 on amorphous porous silica by thermal treatment.

以无机固体硅胶和硫酸钛为原料,利用无机盐在多孔载体表面自发分散的基本原理,通过热处理先形成具有类似于钛硅分子筛Si-O-Ti键的无机SiO2-TiO2前驱体,然后以四丙基氢氧化铵为模板剂,通过水热晶化成功合成了TS-1分子筛。

The inorganic SiO_2-TiO_2 precursor having Si-O-Ti bonds similar to those present in the titanium silicalite (TS-1) molecular sieve was prepared through spontaneous dispersion of Ti(SO_4)_2 on amorphous porous silica by thermal treatment.

在热处理条件下,使Ti(SO4)2在多孔硅胶表面自发分散形成具有类似于钛硅分子筛催化活性中心结构单元的Si-O-Ti键的SiO2-TiO2前驱体,将该前驱体在模板剂四丙基氢氧化铵的作用下水热晶化得到了钛硅分子筛TS-1。

Based on the variation of solution pH and precipitation particle size during the precipitation and crystallization process of lanthanum carbonate,which precipitated with ammonium bicarbonate,the spontaneous crystallization characteristics were investigated.

根据碳酸镧沉淀与结晶过程中溶液 p H值和沉淀粒度的测定结果 ,对碳酸镧沉淀的自发结晶性能进行了研究 ,结果表明 :碳酸镧自发结晶的活性区域位于碳酸氢铵与镧离子的沉淀反应摩尔比 1∶ 1～ 2 。

In the present dissertation,the study is on fabricating high quality hydrothermal ZnO crystals,is on influences on crystal s appearances and quality under growing conditions of spontaneous crystallizations,is on manufacturing autoclave with lining for growing large size ZnO crystals,is on crystal s quality under varied growing conditions with seeds.

本文研究水热自发结晶的生长条件对ZnO晶体形貌和质量的影响,研制用于生长较大尺寸晶体的防腐高压釜,研究水热有籽晶生长的条件对ZnO晶体质量的影响,比较两者的生长习性和生长机理,结合ZnO晶体-c面和+c面退火前后性能的研究,探索晶体中的缺陷变化对其光电性能的影响。