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донный клапан stresses
construct.	vanne de pieds
forestr.	robinet pour fond de cuve
hydr.	volet du noyage
mech.eng.	clapet de fond; clapet de pied-crépine; clapet-crépine m; crépine f; soupape de fond (насоса)
mining.	vanne de pied
tech.	clapet de pied; vanne à pieds

донный клапан: 2 phrases in 2 subjects

Mechanic engineering	1
Technology	1