查询词典 symmetry

Our conclusion is : For general transport equation and some special transport equations (slab geometry, spherical symmetry, pillar symmetry) we can evaluate some relevant physical quantities and geometrical properties from the exiting photon flux. The method we will use is to transform the transport equation into integral equation by integrating it along its characteristics, then we prove the nonlinear operator K is monotone and continuous with respect to its arguments and obtain the existence of K~-1. Consequently, we can evaluate some relevant physical quantities and geometrical property of the medium.

我们得到的结论是：无论对于一般的迁移方程，还是当介质具有某种对称性时(板对称、球对称、柱对称)的迁移方程，我们都可以根据泄漏的光子流估计介质各种相关物理量和几何特性，所用方法都是将迁移方程通过沿特征线积分转化为积分方程的形式，然后证明非线性算子K关于自变量的单调性和连续性，从而得到逆算子K~(-1)存在，进而达到估计介质各种相关物理量和几何特性的目的。

It is proved that frame indifference of strain energy founctions Wof a hyperelastic materical implies symmetry of Cauchy stress tensor T,and that frame indifference of T implies symmetry of T.

证明了应变能函数的客观性意味着 Cauchy 应力张量的对称性，以及 Cauchy 应力张量的客观性将包含应变能函数的客观性，从而也导致 Cauchy 应力张量的对称性。

It introduces the origin of symmetry of matter, mainly including the symmetries of molecules and crystals, basic operation of symmetry and the concepts of group.

着重介绍化学键的物理本质及其对物质结构、形态和性能的影响；讲述物质结构对称性的起源，主要包括分子的对称性和晶体的对称性，基本对称操作和群的概念。

Firstly, according to Curie principle, the symmetry of the order parameter is decided by using the symmetry of the crystal before and after phase transition.

在居里原理的基础上，以PZT晶体、钛酸锶晶体和反铁电的简立方晶格模型为例研究了反铁电相变的序参量。

This treatise set, forth the importance of symmetry principle in physical theoretical system from the high plane of methodology and discusses the dialetical relationship among symmetry,dynamical equations and conservation laws.

从方法论的高度阐述了对称性原理在物理学理论体系中的重要性，论述了对称性、动力学方程和守恒定律之间的辩证关系。

The principle of twin symmetry roll axle-mill was introduced.A new process was proposed which was for twin symmetry roll axial rolling passive spiral bevel gears.The deformation process by the new technology was analyzed by rigid plastic FEM software.Rolling force was calculated in theory.

介绍了对称双辊轴向轧机原理，提出了对称双辊轴向轧制成形螺旋锥齿轮新工艺，利用刚塑性有限元模拟软件对新工艺变形过程进行了仿真分析，对成形工艺力进行了理论计算。

The core of the debate between Latour and Bloor on the Strong Program was the confrontation of Bloor\'s symmetry principle of Strong Program and Latour\'s second symmetry principle. The essential disagreement between their theories was whether to insist the subject-object schema, or to discard it. Each of them adopted his own criterion of metaphysics and the different criteria resulted in two different kinds of relativisms. Both sides fell into the same philosophical dilemma. The debate between the post-SSK represented by Latour and the SSK represented by Collins and Yearley intensively revealed their disagreement in interior social construction, manifested by the opposition between social realism and ontology of nature-society mixture, between the normative method and descriptive method, between signified view of science and practical view of science, respectively.It is necessary to trace and clarify the core concepts of Latour\'s "Actor-Network Theory" such as "actor","network","agent", etc.

关于拉图尔和布鲁尔之间关于强纲领的论战，其核心是布鲁尔强纲领的对称性原则与拉图尔的普遍对称性原则之间的争论，二人理论的本质不同在于坚持还是消解主体-客体模式，由于所持不同的形而上学标准导致了两种不同的相对主义，而争论双方陷入了相同的哲学困境；关于以拉图尔为代表的后科学知识社会学与柯林斯和耶尔莱为代表的科学知识社会学之争，集中体现了社会建构内部间在本体论、认识论、科学观上的分歧，分别表现为：社会实在论与自然—社会混合本体论的对立、规范主义进路与描述主义进路的对立、表征科学观与实践科学观之间的对立。

Therewithal the symmetry about centrality had spontaneously breaken and had brought about the spacetime of multiverse, the mirror symmetry of CPT betweenthe universe of matter with antimatter centralized about The central black hole.

于是，中心对称自发破缺，产生正反物质世界以中心黑洞为中心的CPT镜面对称的多宇宙时空。

Therewithal the centric symmetry had spontaneously breaken and had brought about the spacetime of multiverse , which makes a feature of the mirror symmetry of CPT between the universes of matter with antimatter centralized about The central black hole .

于是，中心对称自发破缺，产生正反物质世界以中心黑洞为中心的CPT镜面对称的多宇宙时空。

The results of 3-D numerical modeling of the transversely isotropic media with horizontal symmetry axis and the orthorhombic symmetry media showed that quasi P wave,quasi-SV wave and quasi-SH wave occurred during elastic wave propagation in 3-D anisotropic media. Meanwhile, the special phenomena such as the S wave splitting, the blind zone of S wave splitting and quasi-SV wave-front triplication were clearly observed. In addition, the elastic wave-fronts are spatially changed, and the coupled relations among the quasi-P wave,quasi-SV wave and quasiSH wave in 3-D anisotropic media are very complex.

对方位各向异性介质模型和正交各向异性介质模型中弹性波的传播进行的三维数值模拟结果表明，弹性波在三维各向异性介质中传播时存在拟P波、拟SV波和拟SH波，并出现横波分裂、横波分裂盲区、波面三分叉等特殊现象，另外，性波场在空间是变化的，其拟P波、拟SV波和拟SH波的耦合关系比较复杂。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。