About: http://webisa.webdatacommons.org/375169844

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	A method of measuring the flow of a fluid according to claims 1, 2 or 3 wherein said fluid to be measured is a liquid and said particulate tracer is a metal-clad ceramic tracer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com