About: http://webisa.webdatacommons.org/405525934

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 atmosphere where active energy beams are applied should preferably be an atmosphere of an inert gas such as nitrogen (N2), helium (He) and carbon dioxide (CO2) containing less than about 1% by volume of oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com