PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Description of the Related Art [0004] Generally, when a substrate is processed at a pressure lower than the atmospheric pressure (hereinafter referred to as ???vacuum???), the substrate is introduced into a vacuum chamber evacuated by a vacuum pump, and a process, such as formation of a thin film, plating, or polishing, is then carried out in the vacuum chamber.
http://www.w3.org/ns/prov#wasQuotedFrom
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