Definition: 
orifice plate
English: 
orifice plate
German: 
Blendenscheibe , Staurandblende
French: 
diaphragme, plaque perforée
Spanish: 
disco de orificio, placa de orificio, plancha de orificio
Italian: 
diaframma, piastra perforata
Arabic: 
قرص فوهی
Persian: 
صفحه مدور سوراخ دار
Language: 
English