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drainage system
el.	疏水系统
eng.geol.	河网; 排泄系统
hydroel.st.	排水系统
oil	水系
tech.	排水装置; 下水道系统; 排水网; 排水管系统; 排水管路
drainage system A surface stream, or a body of impounded surface water, together with all other such streams and water bodies that are tributary to it and by which a region is drained. An artificial drainage system includes also surface and subsurface conduits
environ.	排水系统 (指地表河流、或集水处，以及其所有的支流和排水区域。人工排水系统同样包括地表和地下的管道。)

drainage system: 144 phrases in 19 subjects

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