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оптическая системаstresses
gen. 光学体系
tech. 光学系统; 光系; 光系统
оптическая система
: 106 phrases in 16 subjects
Cables and cable production1
Cartography1
Cinema equipment1
Computers1
Electronics4
General41
Household appliances1
Information technology2
Medical1
Metallurgy1
Military7
Missiles1
Nautical1
Oil processing plants1
Radio1
Technology41