segmental tunnel invert

例句：

1. 1.The segmental tunnel invert was designed to improve the efficiency of the transportation system.
   分段隧道逆转型设计旨在提高交通系统的效率。
2. 2. The engineers successfully reversed the segmental tunnel invert, allowing for smoother traffic flow.
   工程师成功地反转了分段隧道逆转型，使得交通流更加顺畅。
3. 3. Due to the segmental tunnel invert, the construction project took longer than expected.
   由于分段隧道逆转型，该项目的建设时间比预期长。