| http://www.w3.org/ns/prov#value | - ving guiding conduits therein, e.g. for feeding the gas to the bottom of the receptacle} [2013???01]B01F 13/0238. . . {with vertical conduits through which the material is being moved upwardly driven by the fluid} [2013???01]B01F 13/0244. . . . {with a central conduit or a central set of conduits} [2013???01]B01F 13/025. . . . {involving gas diffusers at the bottom} [2013???01]B01F 13/0255. . {in
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