angular section

例句：

1. 1. The engineer designed the building with an angular section for maximum efficiency.
   工程师设计这座建筑时，采用了一个角形部分以实现最大的效率。
2. 2.The car's engine compartment has a symmetrical angular section to improve fuel efficiency.
   汽车的发动机舱有一个对称的角形部分，以提高燃油效率。
3. 3. The scientist measured the angle of the angular section in the crystal structure.
   科学家测量了晶体结构中角形部分的角度。