| 单词 | transit instrument |
| 释义 | transit instrumentnoun1 : a telescope that is mounted at right angles to a horizontal east-west axis on which it revolves with its line of collimation in the plane of the meridian and that is used in connection with a clock and chronograph for observing the time of transit of a celestial body over the meridian of a place 2 : transit sense 4 |
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