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井点排水
bridg.constr. well-point unwatering; dewatering by well-point system; drainage by well-points
hydroel.st. drainage by well point; well point drain; well point dewatering
met. drainage by well points
tech. drainage by filter wells; draining well points; well drain; well-point drainage; well-point dry
井点排水: 18 phrases in 7 subjects
Bridge construction2
Engineering geology3
Hydroelectric power stations3
Metallurgy1
Oil / petroleum1
Rail transport1
Technology7