| http://www.w3.org/ns/prov#value | - edback techniques, containing a ???laser??? to measure slide movement errors of machine-tools, dimensional inspection machines or similar equipment.Angular displacement measuring instruments having an ???angular position deviation??? equal to or less (better) than 0.00025??;Note:1-2.B.6.b.2. does not apply to optical instruments, such as autocollimators, using collimated light (e.g., laser light)
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