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大孔径
avia. large aperture
el. wide aperture
tech. heavy caliber; large aperture (的)
大孔［直］径
agric. large pore diameter
大 孔 径: 118 phrases in 20 subjects
Agriculture1
Air defense1
Architecture2
Automobiles6
Aviation5
Bridge construction5
Desert science1
Drilling2
Earth sciences2
Electronics14
Engineering geology5
Explosives and Explosive Ordnance Disposal8
Fishery fishing industry1
General1
Hydroelectric power stations4
Metallurgy5
Oil / petroleum3
Space8
Technology38
Telecommunications6

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