Việt
miệng van
Anh
valve orifice
valve outlet
opening of the valve
Đức
Ventilöffnung
Pháp
ouverture de la soupape
Ventilöffnung /ENG-MECHANICAL/
[DE] Ventilöffnung
[EN] opening of the valve
[FR] ouverture de la soupape
Ventilöffnung /f/CT_MÁY/
[EN] valve outlet
[VI] miệng van