查询词典 rectangular formula

Based on the method that a rectangular function can be expanded into a sum of complex Gaussian functions with finite numbers, the propagation characteristics of a Gaussian beam passing through apertured spatial filter systems are analysed and the corresponding analytical formulae are obtained respectively.

根据矩形函数可以展开为有限复高斯函数之和的方法，从柯林斯衍射积分公式出发，对高斯光束通过受限空间滤波器传输特性进行分析，得到了相应的近似解析式。利用Matlab对其解析式进行数值模拟，得出一组直观的结果。

The concept of the generalized supporting edge is introduced and the generalized displacement solution of the rectangular plate is given in this paper.

本文引入了广义支承边的概念，给出了弯曲矩形板的广义位移解。

The generalized displacement solution is the theoretical fundament to program generally for the rectangular plates.

广义位移解是编制弯曲矩形板通用程序的理论基础。

As application of generalized displacement solution, many problems of stability for rectangular plates are worked out, and the characteristic equation is given by it. The result can be?a reference for engineering.

本文应用弹性矩形薄板稳定问题的广义位移解求解了一系列矩形薄板的稳定问题，给出了相应问题确定临界载荷的特征方程及计算结果，为工程中薄板的设计计算提供了有效的参考。

According to the boundary condition of the actual rectangular plates, it is very easy to get the characteristic equation for the problem through the boundary value of the generalized solution.

根据实际矩形板的边界条件，再应用弹性矩形薄板稳定问题的广义位移解的边界值，很容易便可得到该稳定问题的特征方程。

Dynamic pressure averaging pipe was generally applied to blowing rate measurement in rectangular pipe of power plant, the average velocity of flow in the section was represented by the average dynamic pressure at the line through the geometric center of the cross section, and then the blowing rate was determined.

针对这一问题，本文设计了基于"对数契比雪夫法"的送风流量测量装置，将5支动压平均管置于同一截面，按"对数契比雪夫法"选点位置开孔，把这5支动压平均管的静压输出孔、总压输出孔分别连接到一起作为传感器组件的差压输出，实验表明这种方法使测量准确度明显提高。

NURBS has become a representation standard for geometric design systems since 1990.However, it is difficult to model complicated objects with only one NURBS surface patch due to its rectangular domain, and it still suffers from serious limitations in surface stitching.

九十年代以来，NURBS曲线曲面已经成为计算机辅助设计系统的表示标准，由于NURBS曲面定义在矩形域上，难以直接用一张NURBS曲面来整体表示复杂曲面，需要采用分片构造的方法才能达到目的，使得拼接边界处的光滑性也受到了严重限制。

The structures may be rectangular posts, or more geometrically complex forms.

结构可以是矩形柱体或更复杂的几何形状。

The dynamic and rectangular reseau of 8 , take the color histogram of every reseau , change their vector again , get the primitive feature vector of glossal image .

方法首先将舌图像划分成8×8的动态矩形网格，取每个网格的颜色直方图，再将它们向量化，得到舌图像的原始特征向量。

A rectangular goal is positioned at the middle of each goal line.

矩形的球门设置在每条球门线的中央。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。