截面

1. 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。
   If we look at a cross section of a water wave, we may see that the wave form repeats itself at regular intervals.
2. 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 round, often darker cross section of such a lump as it appears on a piece of cut lumber.
3. 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
   A specific layer of soil or subsoil in a vertical cross section of land.
4. 每个班都代表着整个社会的一个完全相当的横截面。
   Each class represented an identical cross-section of the community.

截的英语翻译：

面的英语翻译：