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сигнал бедствия stresses
gen.	signal de détresse
avia.	demande de secours
forestr.	SOS Apel au secours
meteorol.	appel de sécurité
radio	appel de détresse; signal SOS; appel au secours (vleonilh)
trav.	signal d'alarme

сигнал бедствия: 10 phrases in 3 subjects

Aviation	4
Military	1
Radio	5