About: http://webisa.webdatacommons.org/374686580

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	As used herein, unbiased refers to the lack of a mechanical device, such as a spring, which would exert force on the poppet or valve element thereby urging that component away from the respective end of the bore.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com