cross-section diagram

例句：

1. 1.The engineer drew a cross-section diagram of the bridge to show its structure.
   工程师绘制了桥梁的横截面图来展示其结构。
2. 2. The doctor used a cross-section diagram to explain the anatomy of the heart.
   医生使用横截面图来解释心脏的解剖学。
3. 3.The scientist drew a cross-section diagram of the ocean floor to study its geological features.
   科学家绘制了海洋底部的横截面图来研究其地质特征。