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system area

telecom. 系统区
System Area
: 221 phrases in 29 subjects
Agriculture3
Air defense11
Automobiles1
Aviation34
China3
Computer networks3
Desert science1
Earth sciences12
Ecology4
Electronics60
Environment1
Explosives and Explosive Ordnance Disposal2
General3
Geophysics1
Hydroelectric power stations1
Information technology6
Name of organization3
Nautical2
Navigation1
Nuclear and fusion power2
Oceanography & oceanology2
Oil / petroleum2
Project management1
Radio1
Space31
Technology19
Telecommunications5
United Nations1
United States5

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