internal shield ring

例句：

1. 1. The internal shield ring helps to protect the engine from damage during operation.
   内部屏蔽环有助于在运行过程中保护发动机免受损坏。
2. 2. The engineers designed the internal shield ring to improve the vehicle's safety performance.
   工程师们设计了内部屏蔽环以提高车辆的安全性能。
3. 3.The internal shield ring was a crucial component in the development of modern aircraft technology.
   内部屏蔽环是现代航空技术发展中的关键组成部分。