About: http://webisa.webdatacommons.org/39458515

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	Yet in research and development work, it is frequently important that optical and other components be positionable relative to each other in infinite variations of relative distances and positions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com