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لغة المحتوى

1 نتائج 'astronomical observatories'

Astronomical observatories
Scientific facilities
Astronomical systems, Astronomy
Politics, law and economics > Equipment and facilities
Observatorio astronómico (es), Астрономические обсерватории (ru), مراصد فلكية (ar), Observatoire astronomique (fr)
http://vocabularies.unesco.org/thesaurus/concept3221