横截面

例句：

1. 1.The engineer drew a cross-section of the bridge to show its strength.
   工程师绘制了桥梁的横截面图来展示其强度。
2. 2.The doctor cut a slice from the cake to test its taste.
   医生从蛋糕上切了一片来测试味道。
3. 3.The scientist measured the thickness of the soil with a sectional ruler.
   科学家用分段尺测量土壤的厚度。