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单词 Cassegrain telescope
释义

Cassegrain telescope

/ˈkæsɪgreɪn/
noun
a reflecting telescope in which light reflected from a convex secondary mirror passes through a hole in the primary mirror
卡塞格伦望远镜。
词源
late 19th cent.: named after N. Cassegrain (1625-1712), the French astronomer who devised it.
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更新时间:2025/8/16 6:41:27