| http://www.w3.org/ns/prov#value | - After the accuracy of the ellipsoid surface 112 has been tested and verified in the manner discussed above in association with FIGS. 7-10, the portion 202 of the workpiece 110 that carries the reference surfaces can optionally be removed, for example by cutting or machining, or in some other suitable manner, leaving only the cylindrical central portion 201 with the ellipsoid surface 112 thereon.
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