单词 | Danjon prismatic astrolabe |
释义 | Danjon prismatic astrolabe [`dän·yǝn priz`mad·ik `as·trǝ´lāb] ENGINEERING A type of astrolabe in which a Wollaston prism just inside the focus of the telescope converts converging beams of light into parallel beams, permitting a great increase in accuracy. |
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