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Umluft f f =
construct. recirculation de l'air
earth.sc., transp., met. convection f
energ.ind. reprise d'air; air de reprise; air froid de reprise; reprise f
mater.sc., mech.eng. air de circulation
mun.plan., earth.sc. air recirculé; air recyclé
Umlüfter f
tech., industr., construct. ventilateur de circulation
Umluft
: 3 phrases in 3 subjects
Chemistry1
Labor law1
Technology1