A new finite difference wide angle beam propagation method is developed by introducing the least squares expansion approximant in the propagator expansion.

Meyer Approximant of Time Optimal Controls

时间最优控制的Meyer逼近

The work in this thesis can be summarized as: Five structure of the quasicrystal approximant were studied.

总之作者在本论文中的工作可以归纳为：确定了五种准晶近似相的结构，尝试了两种新方法，一种是联合利用电子显微学和单晶X射线衍射来确定准晶近似相中的复杂结构；

In this paper, three theorems about algebraic properties of multivariate matrix Pad é approximant are given.

文章给出关于多元矩阵Padé逼近代数性质的三个定理。

Computation Formulas of Generalised Inverse Pad é Approximant Using for Solution of Integral Equations

用于积分方程解的广义逆函数值Padé逼近的计算公式

Theorem One testifies the duality property of multivariate matrix Pad é approximant.

定理一证明矩阵Padé逼近的对偶性质；

Glauber's multiple scattering theory and approximant treatment

Glauber多次散射理论和近似处理

Analysis on Features of Plosives and Approximant/ r/ with the Contrastive Study of Their Phonemic Systems for Both English and Chinese& A Discussion in Addition with Professor Wang Gui-zhen

英语爆破音、无摩擦延续音/r/的发音特征及其英汉音位系统的对比研究&兼与王桂珍教授商榷

Studies on the Phonetic Characteristics of Approximant/ r/ in English

英语中无摩擦延续音/r/音位的语音特征研究

Following the approximative expression, the nonlinear characteristics of ball bearing vibration are studied theoretically and validated by the real test data.

据此，从理论上分析了球轴承振动的非线性特性，并用实际的实验数据进行了验证。

Therefore, to solve the complex practical problems, the effective method is to find out all kinds of approximative result and analytic result.

因此，要解决复杂的实际问题，比较有效的途径是寻求各种近似解和数值解。

On the range of application of the general equation of acid-base titration curves and the approximative calculation for pH value

酸碱滴定曲线方程通式应用范围及pH值的近似计算

Approximative calculation of the center distance deviation on the housing of double-circular-arc gear reducers

双圆弧齿轮减速箱体中心距差值的近似计算

The features, choice of capacitor network and approximative calculation are discussed. ( 2 refs.)

本文探讨了这种压电振子的特性以及电容网络的选择与近似计算方法。

The significance degree and the approximative reduction of attributes are defined, and the corresponding reduction algorithm is proposed.

定义了模糊决策信息系统属性的重要度及近似约简，给出了约简算法。

Approximative Compactness and Geometric Conditions for Continuity of Prediction Operator in Banach Spaces

Banach空间逼近紧性与预报算子连续性的几何条件

Geometric criteria for Banach space to be approximative compact has been given in this paper at first.

首先给出Banach空间为逼近紧的几何特征。

An Approximative Decoupling Method for Multivariable Systems

多变量系统近似解耦的一种方法

An Approximative Method for the Prediction of Vibration and Sound Radiation from Arbitrary Submerged Shell of Revolution

一种预报水下任意形旋转壳体振动和声辐射的近似方法

Approximative analysis for piled rafts by pile load tests

由单桩载荷试验预测桩筏基础沉降的简化分析方法

Experimental results show that the simulation results of this method are more approximative to the actual distribution of leakage magnetic field.

实验结果表明，该方法的计算结果更加贴近于漏磁场的实际空间分布。