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自动放气阀 zìdòng fàngqìfá
archit. automatical vent
tech. automatic blow off valve; automatic vent; valve air relief
液压系统自动放气阀 zìdòng fàngqìfá
auto. self-bleeding valve
制动系统自动放气阀 zìdòng fàngqìfá
auto. automatic bleeder valve