About: http://webisa.webdatacommons.org/397159431

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 transducer crystal employed with the present invention preferably is a relatively inexpensive crystal having a low Q. By way of example, the crystal 110 can be of lead, metaniobate rather than lead zirconium titanate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com