About: http://webisa.webdatacommons.org/189617175

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	interest with other zero crossings, including zero crossings of the opposite sign, will result in large errors, ultrasonic flowmeters must make provision for preventing the occurrence of phase ambiguities.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com