ili:i51612
http:rdf: | type | |
skos: | definition | a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror |
Semantic relations
β΄dns: | linked concept |
Other
Source | http: |
β΄ fully or partially logically inferred
β download data as: .ttl