PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By the addition of other gases--rare gases, nitrogen, slowly etching gases, such as CF4 --, this speed can be reduced, if desired for practical uses, while maintaining the high etching selectivity.
http://www.w3.org/ns/prov#wasQuotedFrom
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