{HEAD ~ This invention} relates to chemical synthesis and, in particular, to {TAIL ~ the production} of fine powders of metallic oxides, such as titania, zirconia, zinc oxides and the like 
{ HEAD ~ This invention } relates to chemical synthesis and , in particular , to { TAIL ~ the production } of fine powders of metallic oxides , such as titania , zirconia , zinc oxides and the like
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