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well-drain
desert. 井排
well drain
eng.geol. 井排水
hydroel.st. 排水井; 井式排水
tech. 井排 (水); 井沟; 井点排水
well-drain: 13 phrases in 8 subjects
Bridge construction1
Drilling1
Electronics2
Hydroelectric power stations2
Metallurgy2
Oil / petroleum1
Technology3
Water resources1