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排水系统 páishuǐ xìtǒng
agric.	drain (复)
bridg.constr.	discharge system; sewerage system; sewerage; water drainage system
el.	drain system
environ.	built drainage system Collection of open and/or closed drains, together with structures and pumps used to collect and dispose of excess surface or subsurface water (开放和/或关闭的排水管道，和用来收集和消除地表多余的水或地下水的结构和管道一起，组成的集合。); 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 (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。)
hydroel.st.	drainage; wastewater system; drainage system
tech.	collecting system; double main system; drainage works; emptying system; hydraulic emptying system; natural system; pumping system; pumping-out system; sewer system; unwatering system; water release system
排水〔沟渠〕系统
gen.	sewerage
排水沟渠系统
archit.	sewerage
地下沟道排水系统 páishuǐ xìtǒng
el.	underdrain system
排水管系统
tech.	drainage system

排水系统: 311 phrases in 25 subjects

Agriculture	8
Animal husbandry	3
Architecture	6
Aviation	4
Bridge construction	4
Construction	1
Desert science	4
Ecology	6
Electronics	8
Engineering geology	14
Environment	3
Food industry	2
General	2
Hydraulics	5
Hydroelectric power stations	18
Management	1
Metallurgy	4
Nautical	8
Nuclear and fusion power	7
Oil / petroleum	7
Project management	1
Rail transport	1
Sports	2
Technology	185
Water resources	7