维和

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。

My wife and I met while we were serving in the Peace Corps.

我的妻子和我是在国际维和部队里服役时认识的。

After briefly reviewing the classification and history of curve and surface modeling, we discuss the characters, applications and representative work on three types of geometric approximation. And we present a survey of the vertex correspondence problem and the vertex interpolation problem in 2D and 3D shape blending modeling and key frame animation.

作者简要回顾了曲线曲面造型的分类和发展历史，论述了曲线曲面造型中所遇到的三类几何逼近问题的特点、应用和代表性工作，并就用于二维和三维形状混合造型的几何插值方法从顶点对应和顶点插值两方面做了一个系统的综述。

All we crapper do is wager from the time and attain pact with it.

我们所能做的事情就是从过去吸取教训然后维和它的和平。

Its structure was determined by means of spectroscopy methods and X-ray crystallography.

利用晶体X-射线法与一维和二维核磁共振法测定了该化合物的结构，指认了核磁共振信号的归属。

According to different characteristics of CMM error distribution, single error measurement model is built by cubic spline principle and double cubic spline function.

根据三种类型三坐标测量机误差分布的特征，提出了利用三次样条原理和双三次样条函数建立测量机一维和二维相关性误差模型。

Then a combination of 2-D and 3-D PIC simulation was used to design and optimize the structure and parameters for Cyclotron SR.

然后采用二维和三维粒子模拟相结合的方法优化设计了回旋超辐射的系统参数与结构。

Objective To assess the value of ultrasonography in the diagnosis and differential diagnosis of cystic lesions of the neck.

目的 探讨二维和彩色多普勒超声对颈部囊性病变的诊断和鉴别诊断价值。

Current input technology provides us with the ubiquitous mouse, the data tablet and the transparent, touch-sensitive panel mounted on the screen. Even fancier input devices that supply, in addition to screen location, 3D and higher-dimensional input values, are becoming common

现在的输入设备主要有鼠标、数字化仪以及触摸屏等，使用它们不仅可以输入屏幕位置，还可以获得三维和更高维的输入值，比如轨迹球、空间球和数据手套等。

This is not to decry the peacekeeping troops or their commanders.

这并不是贬低维和部队和他们的指挥官。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。