查询词典 mathematical

These two problems are converted to mathematical problems of solving some matrix inequalities and Riccati equations which are dependent on the time delays.

它们的可解充分条件可以化为与时滞相关的矩阵不等式和 Riccati方程的形式。

To research the propagation characteristics of travelling wave along transmission line in depth, the authors establish a mathematical model of travelling wave along lossless transmission line with the format of discrete time and space mesh lines, derive the stable condition and boundary condition of the wave equations using numerical solution of partial differential equation, and attempt the simplification of the boundary condition to realize full decoupling of voltage and current.

为深入研究行波在配电线路上的传播特性，建立了时间-空间网格线离散格式的无损传输线行波数学模型，采用偏微分方程的数值解法推导了波动方程的稳定条件和边界条件，并尝试对边界条件进行简化，以实现电压和电流的完全解耦。

Based on analyzing the mechanism of oil-water separation in depurator, a mathematical modal for dascribing the operation of induced air flotation depurator has bean developed.

利用文中给出的数学模型进行吸入式气浮净化机的工艺设计时，应通过模型试验确定速度常数和极限脱油浓度，文中给出了设计步骤。

" In the philosophy of mathematics, the thesis that all mathematical propositions are expressible as or derivable from the propositions of pure logic."

在数学哲学中，认为数学是从逻辑推导出来的一种论点。

Conservation and derivation of the mathematical model.

数学模型的引出和守恒。

This article studies the nature in mathematical analysis of derived function and points out the teaching suggestion.

本文归纳研究了导函数的分析性质，指出在数学分析课程中对这部分内容的教学建

For example, the amount of output Q may be derived as a function of various input factors x 1 , x 2 ,..., x n by means of mathematical and/or statistical methods.

举例来说，数额输出 q ，可推导出的函数，各种投入资源的因素，× 1，× 2，……，第十 N 的手段，数学和/或统计方法。

We derived the scalar quantity of magnetic quasi-static vector equation in the electromagnetic crystallizer in the cylindrical coordinates by assuming condition for the mathematical modeling of the electromagnetic crystallizer and dimensionless method and reduction of parameters of electromagnetic governing equations.

在假设了对电磁结晶器数学建模的依据条件下，通过对电磁控制方程组进行参数无量纲化和简化，在柱坐标系中，推导出电磁结晶器内的磁准静态矢量方程的标量形式。

We present the mathematical analysis and simulation result,and a fast algorithm to generate long-run time series is also derived.

本文给出了数学分析方法和计算机仿真结果，由此还可得出一种生成自相似序列的快速方法。

Based on the mathematical relationship between the two parameters, which is derived from a series of known formulae, the definition of Internet validity factor is put forward as a parameter to connect Internet space validity with time validity so as to judge comprehensively the Internet validity.

通过公式推导证明了网络比重和访问直径二个物理参量之间的数学关系，并基于此形式化定义了Internet网络效能因子，将Internet网络的时间和空间效能联系起来，实现了对网络效能的综合评判。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。