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free air ['fri 'ɛə]
commun. Freifeld m
tech. hindernisfreier Luftraum; ungestoerte Luft; ungestoerte Luftstroemung
transp., avia. Außenluft f
free-air: 88 phrases in 23 subjects
Astronautics1
Astronomy1
Biology10
Chemistry4
Communications3
Earth sciences8
Electronics1
General5
Health care2
Life sciences2
Measuring instruments3
Mechanic engineering3
Medical appliances2
Mining2
Natural resourses and wildlife conservation2
Nuclear physics2
Physics8
Refrigeration2
Technology7
Transport4
Дозиметрия5
Радиоактивное излучение8
Радиография3