| 单词 | cassegrain |
| 释义 | Cassegrain in American English (ˈkæsəˌgreɪn) adjective of an arrangement of mirrors, lenses, etc. used in reflecting telescopes and microwave antennas, having its focus or transmission point near or behind the center of the main mirror Derived forms Cassegrainian (ˌCasseˈgrainian) adjective |
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