查询词典 approximation theory

The scattering property and target strength of the anchovy in the Yellow Sea are studied numerically based on sound scattering theory and model approximation techniques.

采用声散射理论和目标强度近似模型评估法对黄海鳀鱼的声散射特征和目标强度进行了数值计算与评估研究。

We must seek two main approximation method s of solution, the variation method and perturbation theory

我们必须寻求两个主要的近似解法、变分法和微扰法。

The random phase approximation method and the Feymann-Hellman theorem are used to calculate the seventh order glueball mass of the 2+1-D SU(2) lattice gauge theory.

采用无规相近似方法，用空心图作为试探波函数，利用Feymann Hellman定理计算七阶 2 + 1维SU(2 )格点规范场的胶球质量，在弱耦合区 1/g2 =1。

The proof relies on regular approximation, the fixed point theorem, the embedding theorems, the semigroup theory and a series of complicated estimates.

然后，利用此结果，通过区域正则化逼近及半群理论获得各种估计，并给出了非齐次Liouville-Poisson模型的整体古典解。

According to the study of the stochastic approximation theory, a new optimization method of yield is given.

在对随机逼近理论进行研究的基础上，提出了一种新的合格率优化算法。

Design of the filter is essentially application of approximation theory.

滤波器的设计，实质上是数学逼近理论的应用。

Using the stochastic approximation theory, a rigorous analysis of the convergence properties of the algorithm was presented.

然后，采用随机逼近理论，严格分析了算法的收敛性。

Part Two. The approximation theory of distributed parameter systems.

偏微分方程的特征函数理论是研究分布参数系统的一个有效方法，但分布参数系统的特征函数的求取十分困难。

In thisthesis, we make knowledge acquisition on rough set approximation operators and random set theory.

粗糙集的推广模型，以及在与之相关的随机集的基础理论上进行知识获取方法的研究。

Choosing right functions and methods to describe objects in real life is one of the most important subjects of Approximation Theory and evenApplied Mathematics, and has extensive applications.

选择合适的函数和方法来描述和刻画实际对象是逼近论甚至整个应用数学的一个重要课题，在实际中有着重要和广泛的应用。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。