PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Therefore, it is very important that the optical path length differences (and consequently the birefringence values) remain substantially fixed during operation of the devices. [0126] Portions of the first and second paths, other than the portions which contribute the optical path length differences, are less critical since these other portions do not determined birefringence values.
http://www.w3.org/ns/prov#wasQuotedFrom
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