bubble plate,bubble tray /INDUSTRY-CHEM/
[DE] Glockenboden
[EN] bubble plate; bubble tray
[FR] plateau à calottes de barbotage; plateau à coupelles
bubble tray,bubble-cap tray /ENERGY-MINING/
[DE] Glockenboden
[EN] bubble tray; bubble-cap tray
[FR] plateau perforé