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catchment area ['kæʧmənt'e(ə)rɪə]
archit.	集水汇水，流域面积
bridg.constr.	汇水区
earth.sc.	集水区域; 汇水〔汇流，受水，储油〕面积; 流域面积
eng.geol.	集水面積; 匯水面積; 集水區
fishery	捕捞区
hydroel.st.	集水面积; 流域面积集水面积; 流域面积; 汇流面积
met.	汇水面积; 受水面积
tech.	吸引地区; 流域 (截水区); 集水区 (域); 含水层补给区; 水源区; 受雨区; 项目服务面积; 设施或经营涉及的范围; 汇集区; 诊疗区; 影响范围; 影响; 服务对象范围; 设施服务吸引范围
water.res.	集水区; 排水面积; 流域
catchment area 1. An area from which surface runoff is carried away by a single drainage system. 2. The area of land bounded by watersheds draining into a river, basin or reservoir ['kæʧmənt'e(ə)rɪə]
environ.	集水区；下游区 (1. 一个区域，从那里通过一条排水系统来排放地面径流。 2. 通过分水线来界定的地域，排放到河里、内港或水库。)

catchment area: 28 phrases in 7 subjects

Agriculture	3
Bridge construction	2
Desert science	2
Earth sciences	2
Hydroelectric power stations	4
Space	2
Technology	13