| 单词 | zenith tube |
| 释义 | zenith tubenoun Astronomy.a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars. Also called zenith telescope. Origin of zenith tubeFirst recorded in 1830–40 Words nearby zenith tubezenithal, zenithal equidistant projection, zenithal projection, zenith distance, zenith telescope, zenith tube, Zenker's degeneration, Zenker's diverticulum, Zenker's necrosis, Zeno, Zenobia Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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