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ring gate
construct.	système de coulée circulaire
industr., construct., chem.	entrée annulaire
mech.eng., construct.	vanne cylindrique de surface
met.	attaque annulaire
met., mech.eng.	attaque circulaire

ring gate: 6 phrases in 4 subjects

Construction	2
Electronics	1
Mechanic engineering	2
Metallurgy	1