查询词典 mathematical notation

For realization of the coupling between the physical model and the mathematical model, rhombic differential grids are adopted in the mathematical model, and a prediction of the water level variation a...

对影响复合模型运行的一些因素进行了分析，强调复合模型实时耦合中参数的匹配问题。给出了模型的运行情况，其精度满足工程需要，实现了实时耦合的复合模型。

The algorithm utilizes the rotating transformation theory of vector, and derives a mathematical expression of trigonometric function which has the interval monotonicity. By comparing the values of mathematical expressions, the sizes of the angles can be judged, this avoids the troublesome calculations of angles, diminishes errors and raises efficiency.The prototype of 3D reconstruction system uses the DXF file as the data source.

文中的算法采用矢量的旋转变换理论，通过计算各分支路径与当前路径之间的三角函数值，利用变换后的三角函数表达式的区间单调性，将角度值的比较转换为三角函数表达式值的比较，从而避免了繁琐的角度值计算，减少了误差，提高了执行效率。

In this paper, the mathematical model of dual-redundancy brushless DC motor was built by the mathematical formula of self-inductance and mutual-inductance between two phases.

参考自感和相间互感的关系公式，建立了双余度无刷直流电动机的数学模型。

In this paper, the nonlinear mathematical model of valve-controlled motor servomechanism is derived and the linear mathematical model for electrohydraulic position servo system is obtained on the basis of known parameters.

由于液压仿真转台的每个框架都是由液压马达直接驱动，因此每个通道都是一个典型的电液位置伺服系统，转台的性能与每个通道的性能密切相关。

Amused student has maths good mathematical faith is the base that develops activity of be used to of mathematical dug sexology smoothly.

数学好玩学生具有良好的数学信念是顺利开展数学探究性学习活动的基础。

A sidelight here is that if you look at the mathematical representations of a PM signal versus an FM signal, the difference is that the modulation component in a PM signal is the mathematical derivative of the modulating signal in the FM signal.

如果你看调相PM信号和调频FM信号的数字表达式的对比，它们的不同点是调相PM信号调制向量是调频FM信号调制向量的数学派生。

The mathematical model for evaluating sidetrack horizontal well drilling is developed by using the fuzzy mathematical theory and analytical hierarchic process.

针对侧钻水平井钻井的特点，应用模糊数学理论和层次分析方法，建立了侧钻水平井钻井综合评价模型。

The mathematical structure can be the mathematical formula, the algorithm, the form, the sketch and so on.

数学结构可以是数学公式，算法、表格、图示等。

The Logic-information method is one kind of theories of quantification, and it is a comprehensive mathematical analysis method based on symbolic logic, Comprehensive analysis, and mathematical statistics.

逻辑信息法是数量化理论的一种，该方法是以数理逻辑、组合分析及数理统计为基础的一种综合数学分方法。

The basic theories of mathematical morphology for binary image are stated, and the most simple structure elements of morphologic transformation for binary images are proposed and proved. The geodetic morphologic transformation models are also developed. For the purpose of improving the speed of transformation in computer, the"set symmetric difference"is introduced to adapt each model. Some new morphologic filtering models and quantitative evaluating model of filtering effects in image processing are proposed, under the applied condition. The morphologic thinning methods are studied, and two new morphologic thinning models are developed. On the basis of analyzing the characteristics of mining maps, the image vectorizing tactics and a series of algorithms are proposed, including dynamic adaptive image thresholding using two thresholds, graphic and text separation, noise removal, and multi elements extracting models with mathematical morphology. Accuracy preserving compressed vectorizing model for image vectorization is put forward to generate vector data in multi layer.

论文对二值图象形态学的基础理论进行了较系统的阐述，提出并证明了二值图象处理中形态变换的最简单结构元素，并发展了测地形态变换模型；为了提高形态变换的计算机实现速度，引入了集合论中"对称差"的概念对各形态变换模型进行了改化；针对数学形态学在图象处理中的实际应用，提出了新的形态滤波模型及滤波效果的度量评价模型；研究了形态细化方法，提出了快速形态细化和保形快速形态细化算法；在研究矿图基本特征基础上，提出了人机协同矿图扫描图象矢量化处理策略及一系列扫描图象处理算法模型，包括双阈值动态自适应图象二值化、图文分离、噪声去除、图面多种要素提取形态变换模型等；在图象栅格—矢量转换中，提出了保精度压缩矢量化模型，以生成分层要素矢量数据。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。