flood detention

• 蓄滞洪区

flood detention的用法和样例：

例句

1. A flood storage and detention area means a depression or a lake from outside embankments including flood--diversion mouths for temporarily storing floodwater.
   蓄滞洪区是指包括分洪口在内的河堤背水面以外临时贮存洪水的低洼地区及湖泊等。