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下水道系统 xiàshuǐdào xìtǒng
consult. sewage systems
eng.geol. sewage system; sewer system
tech. drainage system; system of sewerage; system of sewers
waste.man. sewage scheme
water.res., ecol. sewerage system
下水道管道系统
tech. sewerage system
下水道设备系统
tech. sanitation system
下水道系统: 43 phrases in 7 subjects
Architecture1
Ecology4
Hydroelectric power stations1
Metallurgy1
Plastics1
Technology31
Water resources4