About: http://webisa.webdatacommons.org/64787987

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	Since the reflecting mirror used here is a multi-layer mirror in most cases, however, a radiation optical system including only the elliptical mirror 2 is ideally desirable from a viewpoint of reflection efficiency.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com