两对称

This paper explains the function of neutral line in Y connection of asymmetric loads by two ways: experiment analysis and theoretic calculation.

通过实验分析和理论计算，从两个方面说明中线在不对称负载作星形连接时的作用

Further more, it is found that the neutrino mixing may be enlarged in this mechanism under certain conditions.

有两种有兴趣的模型可以导致Seesaw机制，即左右手对称模型和SO（10）大统一理论。

Two new chapters treat symmetric indefinite systems and skew-symmetric systems, and nonlinear systems and Newton's method.

两新章对待匀称的模糊的系统和歪斜失真对称系统和非线性的系统和牛顿的方法。

It has great potentialities in such fields as micro-optics, integrated optics and optics communication.Firstly, based on the basic theory of GRIN optics the optical effects of the spherical symmetry GRIN micro-sphere lens were analyzed systematically.

本工作从梯度折射率介质光学的基本理论出发对球对称GRIN微球透镜的光学性能进行了系统分析；选择两种适当单体，采用悬浮扩散共聚法制备出聚合物梯度折射率微球透镜；测量所得透镜的折射率分布曲线和其他光学参数。

When there are just two commodities one obtains the symmetric payoff matrix.

当只有这两种商品时，获得一个对称的支付矩阵

After a description of the basic principle of vertical ultrasonic guided wave, this paper has made an analysis on the variation of the displacement offset of vertical mode variant with frequency; it has also presented an approach by which a pectinate symmetrical transducer be used to effectively detect pipeline flaws.

在纵向超声导波基本原理的基础上，分析了两种纵向模式位移分量随频率的变化而变化的情况，给出了一种梳状对称换能器对管道缺陷的有效检测。

Expression patterns of these Saintpaulia homologs thus were compared between flower buds of zygomorphic wild type and actinomorphic peloria.

结果显示，SiCYC1A和SiCYC1B在两种对称性状中的背侧花瓣上都有表现。

The 0°K relaxed structures of grain boundaries in Cu and its alloys (Cu-Ag, Cu-Bi) were simulated with molecular dynamics method by using a five-parameter potential and constant volume assumption.In these cases, the results showed that the atomic distribution was periodic in the two directions paralled to the grain boundary and it was mirror-symmetric in the direction perpendicular to the boundary.

本文采用五参数对势和固定体积的假定，应用分子动力学方法模拟了零温下纯Cu、Cu-Ag和Cu-Bi合金的晶界弛豫结构，计算结果表明，在上述情况下，原子分布在平行晶界面的两个方向是周期性的，在垂直晶界面的方向是镜面对称的。

In this paper, the existence of the periodic solution for two classes of piecewise symmetric systems is studied, and the certain sufficient conditions for the existence of the corresponding systems are obtained.

本文研究了两类分段对称系统周期解的存在性，得到了系统相应的周期解存在的充分条件。

Themethod is based on a decomposition of atomic wavefunction〓 into a product of a correlation factor 〓,partially describing the wavefunctioncharacteristics,and the other factor 〓,which is stillexpanded in the symmetric basis function of 〓permutation group.

将Li原子的波函数ψ分解为两项之积，即ψ=Xφ，X=exp-α（〓；而φ仍向〓群的对称基展开，得出超球径耦合微分方程，〓（1）其中，〓和〓为方阵，〓为对角阵，〓（2）再利用广义Laguerre函数展开法对其求解，得到系数矩阵的递推关系式。

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％。