| http://www.w3.org/ns/prov#value | - By preparing a slurry of the composite oxide and pulverizing it while mixing with a pulverizer such as an attriter or ball mill, the diameter of the secondary particles of this composite oxide can be decreased to 3 ??m ?? or less on average, By coating a honeycomb substrate or the like with this composite oxide slurry, a resultant carrier can be used for the three-way catalyst for reducing exhaust
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