PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In particular, directly providing an evacuation mechanism in the ionization apparatus prevents the discharge gas and the gaseous molecules produced by the reaction of for example the by-products and discharge gas from flowing into the mass spectrometry apparatus and enables prevention of the parts inside the mass spectrometry apparatus from secondary contamination.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.fr