| 单词 | hour angle |
| 释义 | hour angle hour angle n.Abbr. ha（名词）缩写 haThe angular distance, measured westward along the celestial equator, between the celestial meridian of the observer and the hour circle passing through a celestial body.时角：沿天体赤道向西量出的角距，位于观察者所处的子午线与通过天体的子午线之间 |
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