cross section

名词 cross section:

1. a section created by a plane cutting a solid perpendicular to its longest axis
2. a sample meant to be representative of a whole population
3. (physics) the probability that a particular interaction (as capture or ionization) will take place between particles; measured in barns

形容词 cross section:

1. representing a plane made by cutting across something at right angles to its length
   同义词：cross-section, cross-sectional

1. A concave molding with a cross section that approximates a quarter circle.
   飞檐的凹圆线脚截面近于九十度弧的凹线脚
2. 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
3. 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。
4. 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