"return line" in German return line Rückleitung Rückkanal Rückpfad Detailed translations for "return line" return line return line(also: return duct, return path, reverse channel) die Rückleitung{feminine} return line(also: return duct, return path, reverse channel, back channel) der Rückkanal{masculine} return line(also: return duct, return path, reverse channel) der Rückpfad{masculine}