查询词典 symmetry

There are mutual impedance and mutual admittance in zero sequence network of double circuit that makes it difficult to calculate fault circuits by symmetry component method.

用对称分量法进行超高压同杆双回线故障计算时将遇到零序分量间存在零序互阻抗和零序互电纳的问题。

Chapter 4 addresses the entry and exit in symmetry duopoly.

第四章研究对称双寡头的条件下分析企业的进入和退出策略。

The effect of chiral symmetry restoration in the medium is reflected on the nucleon effective mass.

在我们的理论框架中，手征对称性在媒质中的恢复的效应主要体现在核子质量上。

In addition, through analysis the solution of the Einstein Field Equation in static spherical symmetry gravitation field, we get the relationship between proper time and coordinate time ,as well as the rate of light signal period, with which the rate of frequency can be calculated.

文章通过对静态球对称引力场中的爱因斯坦场方程的解的分析，得出了标准时和坐标时的关系，利用这个关系求得一个光信号的周期之比，从而求得频率之比。

The evolution of strain energy with the aspect ratio (length/width) of the epitaxial structures was found to be affected by the height, the elastic constant of the substrates and the epilayers, and the symmetry of the lattice mismatch of these structures.

我们发现磊晶结构应变能随长宽比变化的方式将受到结构的高度、磊晶薄膜和基板的弹性系数、及晶格的对称性所影响。

After profound systematic theoretical and testing reasearch of metal rubber mechanical property,manufacturing technology,macro-micro constitutive relation and metal rubber spring coupling technique, we present deep intercross wiring manufacturing technology,establish infinitesimal spring constitutive model,non-symmetry elastic hysteresis constitutive model,dissipation factor testing method based on equivalent stress function and key technique methods of metal rubber elastic damping fabrication.

我们针对金属橡胶力学性能、制造工艺、宏观、微观本构关系及金属橡胶制造弹性联轴器关键技术开展了系统深入的理论与实验研究，提出了基于深度交叉钩联编织技术的制造工艺方法、建立了微元弹簧组合的微观本构关系、非对称弹性变形滞迟泛涵宏观本构关系、基于等效应力函数概念的损耗因子测试方法和金属橡胶制造弹性阻尼元件关键技术。

Interesting works include three parts,(1) deriving an elastic strain energy equation to discuss constitutive relations of various elastic symmetry systems, and to check out some errors in previous papers.(2) deriving effective elastic constants of EDA-PTL medium;(3) deriving and numerically studying the elastic wave rays angle dispersion phenomenon.

除了引用前人给出的公式外，本论文有特色的工作是：推导了一个应变能公式，给出了各种对称体系下的弹性本构形式，对前人给出的结果作了验证，指出存在的个别错误；对EDA构成的薄层介质各向异性弹性常数作了推导，给出了解析表达；对几种类型的各向异性体系的角散式进行了推导并作了数值计算。

The expression for short-circuit electrodynamic force of rectangular bus bars on the basis of the calculation of three-phase symmetry short-circuit current was fi.

本文首先根据系统发生三相对称短路时的短路电流，给出了三相矩形母线短路电动力的解析表达式。

As early as 1960, Yoichiro Nambu formulated his mathematical description of spontaneous broken symmetry in elementary particle physics.

早在1960年，南部阳一郎提出了他的数学描述的对称性自发破在基本粒子物理学。

In practice, the earth is a non-rolling-symmetry ellipsoid, so much as is an ellipsoid as a pear.

但实际地球是一个非旋转对称的椭球体，甚至是梨形椭球体。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。