About: http://webisa.webdatacommons.org/308238344

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The most common technique is through the use of an inert gas to backfill the chamber at a pressure which is slightly greater than atmospheric pressure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es