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zenith tube
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ze
′
nith tube′,
[
Astron.
]
Astronomy
a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars. Also called
ze
′
nith tel′escope.
1830–40
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更新时间:2026/8/12 2:40:50