| 摘要 |
An aeration cartridge (10) within an outer vessel, the aeration cartridge (10) comprising a tube (18) constructed from two or more longitudinally joined cylindrical sections (20), wherein respective ends of the cylindrical sections (20) are shaped so that when they are joined together, at least one slot (24) passing from an inner surface of the tube (18) to an outer surface of the tube (18) is created at the join, and wherein the outer vessel is capable of being connected to a high pressure gas supply. |
