| http://www.w3.org/ns/prov#value | - The metal is etched in such a manner as to deliberately cause undercutting of the pattern, and to permit connection, joining, or ???breakthrough??? of some of the recesses so as to produce a sharply defined complex network structure, including an interconnecting pattern in which the size of most of the recesses is smaller at the surface 12 than at a plane some distance below the surface 12 of the
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