Cassegrain telescopeCassegrainian telescope

Cassegrain telescopeCassegrainian telescope
Cassegrain telescope, Cassegrainian telescope /kas-ə-grānˈ(i-ən) telˈi-skōp/
A type of reflecting telescope devised by, and named after, a 17c Frenchman, N Cassegrain

Useful english dictionary. 2012.

Игры ⚽ Поможем написать курсовую

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