| 单词 | local mean time |
| 释义 | local mean time [`lō·kǝl ¦mēn ¦tīm] ASTRONOMY The arc of the celestial equator, or the angle at the celestial pole, between the lower branch of the local celestial meridian and the hour circle of the mean sun, measured westward from the lower branch of the local celestial meridian through 24 hours. |
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