convergent section

例句：

1. 1.The engineer designed a convergent section to improve the efficiency of the machine.
   工程师设计了一个收敛部分来提高机器的效率。
2. 2. The scientist found that the convergent section was responsible for the increase in temperature.
   科学家发现收敛部分是导致温度增加的原因。
3. 3. The project team decided to incorporate a convergent section into their design to enhance stability.
   项目团队决定将一个收敛部分融入他们的设计中以增强稳定性。