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| void (in a floor); vent, duct opening, air inlet outlet | |||
| spout; sink; outlet; bell-mouth | |||
| collar (d'un puits) | |||
| apertura; aperture; opening mouth; foramen; hole; oris os (orificium, ostium); mouth (orificium, ostium); stoma; hiatus | |||
| neck; mouth; mouthpiece; pouring spout; muzzle; nozzle; tip; opening | |||
| inlet | |||
| feed aperture; feed slot | |||
| throat; orifice | |||
| port; vent | |||
| collar | |||
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orifice : 486 do fraz, 35 tematyki |