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release valve
mech.eng.	compuerta de descarga; válvula de descarga; válvula de salida
tech.	válvula de alivio; válvula de seguridad
transp., mech.eng.	válvula de purga

release valve: 10 phrases in 5 subjects

Automobiles	1
Coal	2
Earth sciences	1
Technology	4
Transport	2