river diversion tunnel

例句：

1. 1. The construction of the riverdiversion tunnel has been completed successfully.
   河流改道隧道的建设已经成功完成。
2. 2. The riverdiversion tunnel is an important part ofour water conservation project.
   河流改道隧道是我们水资源保护项目的重要组成部分。
3. 3. The riverdiversion tunnel helps todivert the flow of theriver, preventing flooding during heavy rains.
   河流改道隧道有助于引导河水流动，在大雨期间防止洪水。