About: http://webisa.webdatacommons.org/101250839

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 expressions ???DC voltage??? and ???DC signal??? are used throughout the specification, including in the claims, to denote a time-invariant voltage and time-invariant signal (respectively).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com