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kontraventil n
gen.	vanne d'arrêt
mech.eng.	clapet antiretour; clapet automatique de non-retour; clapet de non retour; clapet de retenue; soupape antiretour; soupape de non retour; soupape de retenue; clapet m; clapet articulé; clapet battant; valve f; valve libre

kontraventil: 14 phrases in 3 subjects

Earth sciences	6
Mechanic engineering	7
Transport	1