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单词
objective prism
释义
WordReference Random House Unabridged Dictionary of American English © 2024
objec
′
tive prism
′
,
[
Astron.
]
Astronomy
a large prism placed in front of the objective lens or mirror of a telescope, allowing the simultaneous acquisition of the spectra of many stars.
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更新时间:2025/7/31 11:46:23