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防气 fángqìstresses
tech. воздухонепроницаемый; герметичный
防气
: 204 phrases in 20 subjects
Aviation2
Chemistry1
Drilling1
Electronics24
Firefighting and fire-control systems3
Foil ships1
Forestry1
General50
Law1
Medical1
Military11
Name of organization2
Nautical3
Oil / petroleum3
Oil and gas1
Rail transport1
Sakhalin1
Security systems2
Technology90
United Nations5