查询词典 symmetry

By making use of the property that the zero-order Bessel function's derivative J′0(0)=0, the DQDHT can calculate the values on the symmetry axis directly.

通过利用零阶贝塞尔函数导数在零点处为零的特性，所提出的准离散汉克尔变换算法可以直接计算光束传输时对称轴上的值。

By using symmetry and boundary conditions the field and input impedance of finite wide-angle biconical antenna can be derived by modal analysis, which generally results in solving infinite linear equations.

模式匹配法利用有限长双锥天线的轴对称性求解天线电磁场边值问题，通常导致求解无限多个线性方程而得不到严格解。

Symmetry of characteristics between eyes of bilaterally affected patients was examined.

检查双眼都被影响的患者的双眼的对称性特征。

Chapter 3 introduces some methods seeking exact solutions for the nonlinear evolution equation, such as inverse scattering method, symmetry reduction method, Backlund transformation, Darboux transformation , Hirota bilinear method, Painleve analysis method, AC = BD model, and so on.

第三章简要介绍了非线性发展方程的若干求解方法，如反散射方法，对称与微分方程约化，Backlund变换和Darboux变换方法，Hirota双线性方法，Painleve奇性分析法，AC=BD框架下的精确求解等。

Trade cost theory, market validity theory and Commission theory are the economic foundation of Bill broker"s system. Two commission models under symmetry and asymmetry information between the investor and bill broker was structured in view of above, probing into two major interests subjects" distribution mode in interests, risk and encourage goal, and establishing the economies" foundation for the standardization development and perfection of bill broker"s system.

交易成本理论、市场有效性理论和委托—代理理论是证券经纪人制度的经济学基础，据此，笔者构建了信息对称和信息不对称两种情况下投资者和证券经纪人之间的委托—代理模型，探讨两大利益主体在利益、风险和激励上的目标分配模式，为证券经纪人制度的规范化发展和完善奠定了经济学基础。

Their motion asymmetry supported the idea of close correlation between motion perception symmetry and binocularity.

三位双上旋肌麻痹，一位视神经重度发育不全，一位早产儿网膜症，两位合并水平及垂直斜视，一位角膜彼得氏异常和一位网膜先天缺损，他们自出生起就没有发育双眼视觉的机会，他们不对称的运动觉支持了运动觉对称性和双眼视觉之间相关性的理论。

Concretely, starting from a short sequence primal masks possessing Hermite interpolation properties, a necessary and sufficient conditions such that primal masks satisfies the preassigned order of sum rules are established, then a dual masks with short support, symmetry and any preassigned order of sum rules is constructed, it follows that two multiscaling functions are obtained and then multiwavelets and dual multiwavelets are derived. From which, a general design framework is obtained for constructing biorthogonal multiwavelets system with multiplicity 2r associated with Hermite interpolation functions.

具体的，从具有Hermite插值性质的短序列尺度符号出发，首先建立它具有指定阶和规则的充要条件，然后构造出短支撑、对称的具有指定阶和规则的对偶尺度符号，从而得到一对对偶的尺度函数，再构造出相应的双正交多小波。

By the circular current symmetry characteristic,on the basis of Biot-Savart law,the expression of the whole-space magnetic induction intensity distribution was deduced in the spherical coordinates system.

在球坐标系中，由磁感应强度的计算公式毕奥-萨伐尔定律出发，利用圆电流磁场的对称性推导出全空间磁感应强度B分布公式，讨论了圆电流平面上和中心轴线上的磁场，应用C数值计算方法对全空间磁感应强度B公式求解，绘制出磁感应强度分布的主要区域及磁场的空间分布图，并对全空间磁感应强度B分布特点进行了讨论。

Firstly, enhanced bit- plane entropy is introduced to avoid the influence of the symmetry of entropy.

该算法采用改进的位平面熵来消除熵的对称性对检索效果造成的影响。

After the analysis this paper holds that the conclusion in line with Bohr Theory can be drawn only if one employs the symmetry satisfied by standing wave condition of circinal string vibration to strength the condition of forming the standing wave when handling angular momentum of the motion of electron going round nucleus in a circle.

提出应该利用封闭弦振动的驻波条件满足的对称性，以加强形成驻波的条件，来处理电子绕核作圆周运动角动量的量子化问题，才能得出与玻尔理论一致的结论。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。