| http://www.w3.org/ns/prov#value | - In either case, the contact and reaction conditions employed are so designed that R0 group and R2 group of the resulting solid magnesium aluminum composite respectively come within the range as defined previously and, at the same time, it is also desirable to select these conditions so that the resulting composite has a particle diameter of more than 1 ??m, especially more than 5 ??m but not more
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