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

单词	Herschel-Cassegrain telescope
释义	Herschel-Cassegrain telescope [`hǝr·shǝl `kas·gran ´tel·ǝ´skōp] ^OPTICS A modification of a Cassegrain telescope in which the primary paraboloidal mirror is slightly inclined to the optical axis, and both the secondary hyperboloidal mirror and the eyepiece are located off the axis, so that it is not necessary to pierce the primary.
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