1. 集水盆地：catchment area 排水区 | catchment basin 集水盆地 | catchment 集水

2. 集水硫：catchment area 汇伶积 | catchment basin 集水硫 | category 类

3. 汇伶积：catchment area 汇伶积 | catchment basin 汇伶积 | catchment water 集水的水

4. 汇水盆地：扣槽 catching groove | 汇水盆地 catchment basin | 汇水盆地;排水井 catchpit

noun

1. the entire geographical area drained by a river and its tributaries
an area characterized by all runoff being conveyed to the same outlet

e.g. flood control in the Missouri basin

Synonym: river basinbasinwatersheddrainage basincatchment areadrainage area