| http://www.w3.org/ns/prov#value | - Another embodiment of the present invention is a method for producing a polished surface on an object by a polishing apparatus having a turntable with an abrading surface, a top ring for holding the object to keep an object surface in moving contact with the abrading surface while rotating the turntable and the top ring, and a magnetic bearing assembly having a thrust bearing device and at least o
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