- air vent valve
- 通气孔: air vent; airflow orifice
- 阀: established house or power g ...
- 排气孔阀: air vent valve
- 喷气孔阀: air vent valve
- 通气孔: air breather; air ent; air hole; air vent; airway; aperture; bleeder hole; blowhole; breather hole; breathing hole; burn out pipe; cutout; gas vent; pickup hole; pressure hole; pressure-vent hole; snore; spile; spiracle; vent breather; ventilating pit; ventilation hole; ventilation vent; ventilator; vent， air
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