About: http://webisa.webdatacommons.org/226869995

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	in the prescribeddistance between the two beams, however, some sort of control system must be used to keep the two beams separated the desired amount.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com