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上游的
hydroel.st. upper; upstream
向,在上游的
auto. upstream
上游的: 58 phrases in 14 subjects
Aviation3
Bridge construction3
Construction2
Curling1
Drilling2
Earth sciences2
Economy2
Electronics1
Engineering geology3
Explosives and Explosive Ordnance Disposal1
General11
Hydroelectric power stations6
Mountaineering1
Technology20