About: http://webisa.webdatacommons.org/430830038

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	system IL is substituted by an inert gas such as helium or nitrogen which is a gas having a low absorption rate of the exposure light, or kept in substantially a vacuum state.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr