地形的

Today, enough soundings are available to enable a relief map of the Atlantic to be drawn and we know something of the great variety of the sea bed's topography.

如今，现在有足够的水深度数据来画一张大西洋的地形图，我们也对一些海底地形的种类有一定的了解。

Interaction between current and underwater bottom topography modulates roughness of the sea sur-face, which in turn yields variation of the radar scattering echo.

海流与海底地形的相互作用导致了海表面的粗糙起伏，从而引起对海面观测的雷达散射截面的变化。

In the small land area, due to the terrain, the soil of two or more staggered pattern of distribution.

在不大的地域内，由于受中地形的影响，两种或两种以上的土壤交错分布的格局。

The macroscopic views of the terrains are okay, but when they used the same generation process for close-up scenes or background scenes of the characters in action, the lack of solidness of terrain images show up noticably.

地形的宏观全景做得很好，但是当它们被使用在特写镜头或者是被用作活动人物的背景时，也采用同样的制作流程的话，那么画面中的地面明显缺乏坚实感。

A new method of post-stack seismic forward modeling under complex surface conditions was proposed from the point of seismic modeling It used the theory of submerse topography and zero-velocity layer, the new method firstly transformed the original surfaceto a level , and got a new model.

基于波动方程基准面延拓的偏移方法理论，从地震波场正演模拟的角度出发，提出了一种新的适用于起伏地形的地震叠后正演方法。

The results indicate that the formation of loess vertical joints can be divided into two phases:① the formation of inner fissure, i.e. in the beginning of deposition, the undulation of terrain leads to uneven distribution of loess, then when it rains uneven collapsibility generates, which leads to generate inner fissures ;② the stage of fissure extension, namely loess continues deposition after the inner fissures have been formed, the increasing of the top pressure makes the top of inner fissure lie in the state of tensile stress, so, when the stress reaches its tensile strength, the inner fissure extends along the vertical direction and then becomes a vertical joint.

结果表明黄土垂直节理的形成可分为 2 个阶段：①内裂隙形成阶段，开始沉积时，由于地形的起伏导致黄土厚度上的分布不均匀，在降雨时产生不均匀湿陷，从而导致产生内裂隙；②裂隙扩展阶段，内裂隙形成后黄土继续堆积，顶部压力的增长致使裂隙顶部土体受到拉应力作用，当达到其抗拉强度时裂隙就会沿竖直方向产生扩张而形成垂直节理。

In this paper, the characteristics and the principals of the digitalizing Erhai lake geo-spatial analysis are outlines firstly.

本文首先分析了数字湖泊地理空间分析的特性和基本方法，研究了紧耦合和松耦合两种建模方式；然后对湖泊区域数字地形的多尺度表达问题进行了研究，最后提出了湖泊区域不同尺度空间数据的组织方式和数据库建立的方法与技术路线。

After introducing the Boussinesq terms, which makes Boussinesq equation applied in the middle water depth and mild slope, and the wave energy loss term, the numerical modal of Boussinesq equation can accurately simulate irregular wave shoaling、refraction—diffraction and reflect in deep and shallower water.

在Boussinesq方程波浪数学模型的建立过程中，采用适用于中等水深（h／〓≤0.5）和缓变地形的Boussinesq项的修正形式，同时在基本方程中增加了波能损耗项，使该模型能够较精确地模拟波浪的浅水变形、折射、绕射、反射及其综合影响。

The established model shows good stability and accuracy as it is tested with two sets of measured data, hence it can be used to simulate dam-break water flows over complex topographies.

最后通过两个算例对本文的模型进行了验证，结果表明该模型具有较好的稳定性和可靠性，能够较好的模拟具有复杂地形的溃坝水流演进过程。

Besides converting the topographies to flat bottom, the transforms also change the distribution of forcing.

数值模拟和外海实验发现内潮多从地形的波折处产生，这从本文得到的坐标变换之后的强迫源的强度分布中可以得到解释。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。