“Newtonian-Cassegrain telescope”的概念、定义、翻译、参考文献-科学参考

单词	Newtonian-Cassegrain telescope
释义	Newtonian-Cassegrain telescope [nü`tō·nē·ǝn `kas´gran `tel·ǝ´skōp] ^OPTICS A modification of a Cassegrain telescope in which the light reflected from the hyperboloidal secondary mirror is again reflected from a diagonal plane mirror and focused at a point on the side of the telescope, avoiding the need to pierce the primary mirror and making the eyepiece more accessible. Also known as Cassegrain- Newtonian telescope.
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