四维的

In addition we establish a new moving coordinate system in the neighborhood of the wave front and obtain a revised eikonal equation describing the curvature effect of waves in the usual orthogonal coordinate system.

由此我们获得了二维和三维情形下靶型波的具体形式。对三维涡卷波和V-形波，我们也给出了它们的具体形式。在第四章，我们应用摄动方法，较简捷地获得了组织中心沿径向和轴向的运动规律。

The left ventricular internal dimension at end diastole, interventricular septal thickness at end diastole and left ventricular posterior wall thickness at end diastole were measured in the parastemal long axis view by transthoracic two-dimensional echocardiography, and to calculate left ventricular ejection fraction with Teichholtz formula and left ventricular mass with modified Devereux formula, left ventricular mass index=LVM/body surface area. From the apical four chamber and two chamber view, the basical segment and middle segment of interventricular septal, left ventricular lateral wall, anterior wall and inferior wall were obtained by tissue Doppler imaging, Regional left ventricular relaxation asynchrony index was calculated.

应用二维超声心动图在胸骨旁左心室长轴观测量左心室舒张末期内径、室间隔和左心室后壁舒张末期厚度，采用Teichholtz公式计算左心室射血分数，采用Devereux校正公式计算左心室心肌质量，左心室心肌质量指数=左心室心肌质量/体表面积；在心尖四腔心和心尖两腔心切面，应用组织多普勒成像获取室间隔、左心室侧壁、前壁和下壁的基底段和中间段8个心肌节段沿左心室长轴运动的速度频谱，测算左心室局部心肌松弛不同步性指数(regional left ventricular relaxation asynchrony index， AI)；在心尖四腔心切面，应用彩色M型多普勒超声心动图测量左心室舒张早期血流传播速度。

On September 11, Brazil's Daniel Dias and Erin Popovich of America win their fourth gold at the 2008 Paralympics.

11日，在"水立方"，巴西小伙丹尼尔·迪亚斯和美国姑娘艾琳·波波维奇当天均获得了个人在北京残奥会上的第四枚金牌，成为令人羡慕的"四金霸主"。

Firstly, it is assumed that the coefficient is known, and we work out the general representation of the pseudoparabolic equation given.

第四章以一类特殊的四阶非线性伪抛物型方程为例，讨论了二维空间上一类伪抛物型方程反演系数的反问题。

Was born in Leipzig, the Leipzig University .1831 harmony and counterpoint .1833 Wurzburg, he became head of theater and opera chorus,"demons." In 1842 his opera "Leith Qi" in the performance a big success, this served as the command .1849 Dresden Royal Opera House, joined in May failed to escape the riots caused by Zurich refuge .1854 began brewing four years, in conjunction opera "Nibelung root Ring "and complete the opera" Tristan und Isolde,"the creation of .1860 years, returning in 1864 to be King Ludwig of Bavaria invited to Munich perform" Tristan und Isolde." In 1876 to build on thanks to the Opera .1877 Pruitt began work,"Parsifal," 182 years to complete because of illness drag .183 years, died of a heart attack in Venice.

生于莱比锡。1831年莱比锡大学学习和声与对位。1833年任维尔茨堡剧院合唱团团长并创作歌剧《妖魔》。1842年其歌剧《利思齐》演出大获成功，为此荣任德累斯顿皇家歌剧院指挥。1849年参加五月暴动失败逃致苏黎世避难。1854年起开始酝酿四联歌剧《尼伯龙根的指环》并完成歌剧《特里斯坦与伊索尔德》的创作。1860年回国，1864年应巴伐利亚国王路德维希之邀去慕尼黑演出《特里斯坦与伊索尔德》。1876年于拜鲁伊特筹建歌剧院。1877年开始创作《帕西法尔》，因病拖至182年完成。183年因心脏病逝世于威尼斯。

The seal on the flag has two important symbols: the mountain is a depiction of Triglav, Slovenia's highest mountain, while the three six pointed stars are taken from the Counts of Celje's coat of arms, a powerful Slovene dynastic house during the 14th to 15th centuries.

旗面上的国徽具两个重要象徵意义︰山脉是描绘斯洛维尼亚境内最高山脉特里格拉夫山；三颗六角星则取自於采列王朝国徽。采列王朝为斯洛维尼亚十四到十五世纪的强盛时期。

"Aimer" National College Invitation Contest for Women's Wear Design 2009 held by China Fashion Association and Beijing Aimer Lingerie Co.,Ltd. on 2nd. Nov. would be the first contest during this fashion week. Excellent works designed by 27 students from 25 colleges and universities over the country will be joined together for the contest.

11月7日，由国内四个分赛区选拔出的27位设计师带着他们以&成长&为主题休闲装设计作品，参加由中国服装协会、中国服装设计师协会和真维斯国际有限公司共同主办的第18届中国真维斯杯休闲装设计大赛决赛。

His generals, meanwhile, Statius Priscus, Avidius Cassius, and Martius Verus44 for four years conducted the war until they advanced to Babylon and Media, and recovered Armenia.45 He, however, gained the names Armeniacus, Parthicus, and Medicus; and these were proffered to Marcus also, who was then living at Rome.

他的将军们，司塔提乌斯。普利苏斯，阿维狄。卡西乌斯和麦提乌斯。维鲁斯（44）在四年中指挥了战争，一直前进到巴比伦和米底亚，收复了亚美尼亚（45）。他，然而，得到了亚美尼亚库斯，帕提亚库斯和米底库斯的称号；这些也被授予马尔库斯，后者当时住在罗马。

Compared with 2D GIS space data model, the 3D model can be divided to four types that are tessellating model, vector model, hybrid model and analytical model.

与二维GIS空间数据模型类比，三维模型又可划分成基于镶嵌的数据模型、基于矢量的数据模型、混合型数据模型和分析型数据模型四种类型。

One manufacturer defines types as lead-acid versus NiCad, while another refers to 1D, 3D, 4D and 8D, or group number batteries as sizes.

一制造商的定义类型式铅酸银两nicad ，而另一个是指一维，三维，四维和为8 D ，或一组号码电池的大小。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。