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活动层
bridg.constr. active layer
tech. active zone; mollisol
活动层冻土,膨胀土
eng.geol. active zone
冻土活动层
eng.geol. active layer
活 动层
: 72 phrases in 14 subjects
Agriculture2
Bridge construction5
China2
Earth sciences2
Ecology1
Electronics2
Engineering geology5
General3
Hydroelectric power stations4
Oil / petroleum11
Rail transport1
Space2
Technology31
United Nations1