查询词典 first approximation

First the approximation problems are obtained by approximation to the initial datum.

第三部分研究基本半导体方程混合初边值问题解的整体性质。

The thesis first recommends the famous fuzzy Gaussian approximation system which is based on the Gaussian membership function, the fuzzy logic of product reasoning and the fuzzy law of weight approach. This thesis is discusses the general fuzzy Gaussian membership function that can approximate the form of triangular, trapezoid and Gaussian function , and its basic form is .The general fuzzy Gaussian membership function is to be generally used in the field of approximation .

模糊逼近是近年来发展比较迅速的一个新兴方向，论文首先给出了模糊理论中著名的基于高斯隶属函数、乘积推理模糊逻辑和重心解模糊法的模糊高斯型万能逼近定理，在此基础上本文进一步给出了可以用来逼近三角形、梯形和高斯形的广义高斯隶属度函数形式，它的基本形式是。

Spherical approximation triangle demonstration tenets : first approximation using regular t...

三角形逼近球体演示原理：先用正三角形逼近绘出20面体，然后递归分割，把每个面分割为4个三角形，此以来逼近球体。

Spherical approximation triangle demonstration tenets : first approximation using regular tria...

三角形逼近球体演示原理：先用正三角形逼近绘出20面体，然后递归分割，把每个面分割为4个三角形，此以来逼近球体。

Quality Assurance Center, the Great Wall of China opened up the field of survey and design quality system (ISO9000) certification in the country has created the first 21, except for China Tianchen company issued the first national design industry certification, but also for the country's largest Daqing Petroleum Administration Bureau of enterprises (28 million) of the overall authentication certificates for the micro-car factory in Tianjin issued the first National Certification automotive industry for the central city of Harbin presented the first national design activities have a commercial certificate service system, for China's Guizhou Maotai liquor industry plant awarded the first National Certification for Tanggu saltworks awarded the first National Certificate salt industry for China Railway Materials Tianjin issued the first material system, the National Certification for Tianjin Service Center for Scholarly Exchange awarded the first Certificate of intermediary organizations, in order to Qingdao Branch Qingdao railway station railway industry presented the first certificate for the China Telecom Group Tianjin Telecom awarded the first Certificate telecommunications industry and so on.

长城质量保证中心开辟了我国勘测设计领域的质量体系(ISO9000)认证工作，在全国创造了二十一项第一，除为中国天辰公司颁发了全国第一张设计行业认证证书外还为全国最大的企业大庆石油管理局(28万人)整体认证颁发证书，为天津微型汽车厂颁发全国第一张汽车行业认证证书，为哈尔滨中央商城颁发全国第一张有设计活动的商业服务系统认证证书，为中国贵州茅台酒厂颁发全国酒类行业第一张认证证书，为塘沽盐场颁发全国第一张制盐行业的认证证书，为中国铁路物资天津公司颁发全国第一张物资系统认证证书，为天津市留学服务中心颁发第一张中介机构的认证证书，为青岛铁路分局青岛站颁发铁路行业第一张认证证书，为中国电信集团天津电信公司颁发第一张电信行业认证证书等等。

China first introduced in the German style of windows and doors and realize the localization of production enterprises in the first domestic product of pure wood, wood kits series of high-grade aluminum windows and doors of the enterprise; first independent development and production of high-end Italian-style windows and doors to the enterprise; The first domestic product in the U.S.-wood, aluminum doors and windows of the series of package-enterprises; first in domestic development and production of wood walls of the family business; first independent development and production of a bullet-proof, anti-riot high-grade security doors and windows; first In the domestic development of intelligent control window and put into application the enterprise; first designed and produced in line with developed Western countries, diplomatic building a high standard and comprehensive prevention requirements of the special windows and doors; first to the United States, Japan and other developed Western countries, exports High-end doors and windows of the enterprise; first in the developed countries to establish branches of the windows and doors manufacturing enterprises in 2000 passed the ISO9001 international quality system certification, and in 2003 for the successful version in 2000 by the British Royal USK international certification in 2001 by Branch Appointed as "Technology Pilot-oriented enterprises" in Beijing in 2003 were rated "famous trademark" in 2003 by Beijing as "a brand-name enterprises" in 2003 was China Building Decoration Association as "well-known brands." Municipal Science and Technology Commission in 2005 was awarded the "high-tech enterprises that certificate" for five consecutive years was in the Trade and Industry Bureau as "Shou credibility of the contract unit."

第一个在中国引入德国风格门窗并实现本地化生产的企业；第一个在国内生产纯木、铝包木系列高档门窗的企业；第一个自主开发并生产出意大利风格高档门窗的企业；第一个在国内生产美式纯木、铝包木系列门窗的企业；第一个在国内开发并生产木质幕墙系列产品的企业；第一个自主开发并生产出防弹、防暴高档安全门窗；第一个在国内开发出智能化控制窗并投入应用的企业；第一个设计并生产出符合西方发达国家外交机构建筑高标准、综合性防范要求的特种门窗；第一个向美国、日本等西方发达国家出口高档门窗的企业；第一个在发达国家设立分公司的门窗制造企业；2000年通过ISO9001国际质量体系认证，并于2003年成功换版；2000年通过英国皇家USK国际认证；2001年被科委评为&科技先导型企业&；2003年被评为北京市&著名商标&；2003年被北京市列为&创名牌重点企业&；2003年被中国建筑装饰协会评为&知名品牌&；2005年获得市科委颁发的&高新技术企业认定证书&；连续五年被市工商局评为&重合同守信誉单位&。

The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite elementspatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously.

此方法即为对方程的对流项沿流体流动的方向即特征方向进行离散，从而保证格式在流动锋线前沿逼近的高稳定性，消除了数值弥散现象，并得到了较小的时间截断误差；另一方面，对方程的扩散项采用混合元离散，可同时高精度逼近未知函数及其伴随向量函数，理论分析表明，此方法是稳定的，具有最优的L~2逼近精度。

The characteristic approximation is used to handle the convection part along the direc-tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion; The mixed finite element spatial approximation is employed to deal with diffusion part and approximate the scalar unknown and the adjoint vector function optimally and simultaneously; In order to preserve the integral conservation of the method, we introduce the modified characteristic method.

该方法对方程的对流部分沿流体流动的方向即特征方向离散以保证格式在流动的锋线前沿逼近的高稳定性，消除数值弥散现象；对方程的扩散部分采用最低次混合有限元方法离散、同时以高精度逼近未知函数及未知函数的梯度；为保证方法的整体守恒性，在格式中引入修正项。

Furthermore, the issues of the approximation of credibility function and the convergence of the approximation method are treated.

进一步，本文考虑可信性函数的逼近方法并证明该方法的收敛性。

The zonal translation networks on the unit sphere is constructed with the best approximation of spherical harmonic polynomials and the Riesz means. The Jackson theorem of approximation by such kind of zonal translation is established.

借助于球调和多项式的最佳逼近多项式和Riesz平均构造出了单位球面S上的带形平移网络，并建立了球面带形平移网络对LS(上标 q中函数一致逼近的Jackson型定理。

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。