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If we look at a cross section of a water wave, we may see that the wave form repeats itself at regular intervals. 如果我们观察水波的横截面，我们会看到波形是按一定的间隔重复的。
Analysis on Adjustment Characteristics and Causes of Cross Section of River Channel in Lower of Weihe River 渭河下游河道横断面调整特点及原因简析
They do not represent a complete cross section of his works. 这当然并非包括了他的全部著作。
A specific layer of soil or subsoil in a vertical cross section of land. 地层，岩层处于土地的垂直横截面中的某一具体土层或次土层
cross section of river 河玲断面
cross section of river channel 河料面
This old man is a cross section of modern artists in Britain. 这位老者是英国现代艺术家的典范。
The round, often darker cross section of such a lump as it appears on a piece of cut lumber. 节疤这种突出物的横截面，呈圆形，比周围的地方要黑，常常出现在切割好的木材上
The cross section of a bridge deck may twist as a result of excessive life. 桥面横断面可能由于过量的升力而发生扭转。
Our homework is figuring out the area of the cross section of a solid. 我们留的作业是求几何体横截面的面积。
On the basis of the hydrologic data from 1981 to 2001, the evolution of river bed at Lanzhou section of the Yellow River was analyzed. 基于1981-2001年水文数据,分析了黄河兰州段河床演变规律;
In slalom, racers try to get from one end of a section of river to the other as quickly as possible whilst going through a series f "gates". 在白浪竞速中，划艇者相互间直接进行对抗，尽可能以最短时间来完成赛程。
If we look at a cross section of a water wave,we may see that the wave form repeats itself at regular intervals. 如果我们观察水波的横截面，我们会看到波形是按一定的间隔重复的。
When accumulative flow method was used to model water quality or dynamics of river with dams,field velocity data should be available to calculate accumulated flow curve of various cross sections. 在用累积流量法模拟计算水库型河流水动力水质时,应当用实际测流结果来绘制各计算断面累积流量曲线。
To study amygdaloid body, hippocampal formation and lateral ventricle in thin cross section of brain to provide the anatomy knowledge for clinic. 观察杏仁体、侧脑室和海马结构在脑的薄层横断面上的表现及变化，为影像学提供解剖学依据。
He has lived one section of miserable life. 他过了一段悲惨的生活。
The geometric size of the cross section of Dewar obtained by calculating ESR discrete point map of F center is in agreement with the material object. 从F心ESR散点图计算出的石英杜瓦横截面几何尺寸与实物基本相符.
Signals control each section of the railway track. 各种信号控制着铁路轨道的每个部分。
A superposition cut is used to describe a cross section of a part by revolving it around an axis of revolution and placing it on the views on the axis. 在不影响图形清晰的条件下，断面也可按投影关系画在视图内，画在视图内的断面图称为重合断面图（简称重合断面）。
An outline cross section of a simple form of road is shown in the inset of Fig. 17. Here the principal terms relating to road construction are given. 图17中插入了一条道路的简易剖面图,图上标出了与道路建设有关的主要术语。