About: http://webisa.webdatacommons.org/14366608

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 sensor head is preferably located close to the film, for example 1/4-3/8 inch above the film, and the distance is preferably adjustable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com