heavy phase weir

例句：

1. 1.The heavy phase of the storm is over, and the weather has improved.
   暴风雨的重相阶段已经过去，天气变好了。
2. 2.He had to build a heavy phase weir to prevent floods in his area.
   他不得不建造一个重型堰以防止他地区的洪水。
3. 3. During the heavy phase of the flood, the city was under water for several days.
   在洪水的重相阶段，城市被水淹没了几天。