primary diversion field

例句：

1. 1.The primary diversion field is designed to divert water from the main stream.
   初级分流场的设计是为了将水从主要河流中分流。
2. 2.The primary diversion field was built to prevent flooding during heavy rains.
   初级分流场的建立是为了在大雨期间防止洪水。
3. 3. The primary diversion field has successfully reduced the amount of pollutants in the river.
   初级分流场已经成功地减少了河流中的污染物含量。