flattening-out of flood wave

例句：

1. 1.The city's efforts to flatten out the flood wave have been a success.
   该市努力平展化洪水波的努力取得了成功。
2. 2. The flood wave has caused significant damage to the nearby village.
   洪水波对附近的村庄造成了重大损害。
3. 3. The scientists are working on developing technologies to flatten out the flood wave.
   科学家们正在研究开发技术，以平展化洪水波。