1 ผลลัพธ์ สำหรับ *cassegrainian telescope*
หรือค้นหา: cassegrainian telescope, -cassegrainian telescope-

WordNet (3.0)
cassegrainian telescope(n) 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, Syn. Gregorian telescope

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