Astronomy. More fully, journeyman clock: a secondary clock in an observatory, used generally as an intermediary in the comparison of standard clocks.
| 单词 | θ95408 |
| 释义 | the world > time > instruments for measuring time > clock > [noun] > secondary clocks > in an observatory (1) journeyman1765 Astronomy. More fully, journeyman clock: a secondary clock in an observatory, used generally as an intermediary in the comparison of standard clocks. |
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