查询词典 circular constant

Second, proceeding with the fact thatthe constructing vector wave functions of conventional circular cylindrical and sphericalvector wave functions are linear independent solutions to the electromagnetic field waveequations in biisotropic medium,spectral impedance boundary conditions are proposed forinfinitely long perfectly conducting circular cylinder and sphere coated with biisotropic media,respectively,which generalize the applicable range of planar structures and are suitable toanalyze the electromagnetic problems involving their counterpart structures.

所用的方法是在Fourier变换谱域中的一阶线性微分方程组理论和矩阵技术，提出了适用于Chiral媒质半空间辐射问题的耦合镜像原理(即镜像电流的振幅和相位是由Chiral媒质中的本征左、右旋圆极化波相互耦合来确定的)和适用于研究平面分层Chiral媒质电磁问题的一般性更高的分析方法。

In order to model complex hair styles, such as curly hairs and wavy hairs, we first construct five types of surfaces and three curves: curved cylinder, curved circular frustum, curved prism, curved edged frustum, curved revolving paraboloid, and curved cylinder helix, curved circular frustum helix and curved revolving paraboloid helix. Then we give the expressions for points and normal vectors on these surfaces, suitable to composition.

为了构造复杂发型，例如卷发发型和波浪发型，我们首先构造了五种曲面和三种曲线：弯曲圆柱面、弯曲圆台面、弯曲棱柱面、弯曲棱台面和弯曲旋转抛物面，以及弯曲圆柱螺线、弯曲圆台螺线和弯曲旋转抛物螺线，并且给出了这些曲线曲面上适合于拼接的点和向量的表示方式。

The researchers next plan to measure circular polarization in other organisms, and to analyze circular polarized light reflected from Mars.

研究人员的下一步计划是在其它生命体中测量圆偏振，并且分析从火星上反射来的圆偏振光。

The article discussed development loop economy is the essential requirement that scientific progress watchs, circular economy is a kind of brand-new economic progress mode, elaborated our country to develop the current situation of circular economy and countermeasure measure.

本文论述了发展循环经济是科学发展观的本质要求，循环经济是一种全新的经济发展模式，并阐述了我国发展循环经济的现状和对策措施。

As the key regulation method and technical measure for circular economy development, the material flow analysis took the important advancement function regarding the mining circular economy implementation and development.

物质流分析作为循环经济的核心调控手段和技术措施，对于矿业循环经济的实施和发展具有重要的推进作用。

By applying the new measure to scene matching, and by using circular windows in the searching process, a minimum maximum circular measure based robust image matching approach was proposed.

以此度量作为景象匹配的相似性度量，并在搜索的过程中采用圆形窗，获得了一种鲁棒的图像匹配方法，即基于最小最大圆度量的鲁棒模板匹配方法。

First, the state～space equation of the circular inverted pend ulum system was established based on the Lagrange Equation. On the base of that, the circular inverted pendulum was swung up by the energy control strategy, and the controller of the system was designed by the pole placement of the optimal control theory. Second, in order to realize the observation for the unknown vari ables, stable state observers were designed based on the equivalent principle of sliding mode variable structure.

该方案在采用 Lagrange 函数建立状态空间方程的基础上，利用能量控制策略实现自动起摆；采用最优控制理论中的极点配置法设计倒立摆系统的控制器；同时利用滑模变结构的等值原理设计观测器，实现对系统未知状态变量的观测。

In this paper we derive the. curve equation of tooth profile on the basis of its meshing principle and discuss the necessity and possibility of replacing the equidistant curve which in the circular section of lang arc external pendulum curve by circular arc.

本文从其啮合原理出发，导出齿廊曲线方程，论述了以圆弧替代长幅外摆线环形部分等距曲线的必要性和可能性，提出圆弧齿形替代要求，运用最优化方法，给出最优设计方案。

Ring: a circular object, form, or arrangement with a vacant circular center.

圈，环状物体，形式和排列，有一个空的圆形中心

Based on analysis of structure and function of bridging diamond circular saw,and in order to reduce the manufacture costs,the crossbeam structure of diamond circular saw was redesigned.

在研究分析桥式金刚石圆盘锯结构、功能的基础上，对金刚石圆盘锯横梁结构进行重新设计以达到降低生产成本的目的。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&