অনুসন্ধান করুন
Coelostat
01
optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror
উদাহরণ
নিকটবর্তী শব্দ
অনুসন্ধান করুন
optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror