A leap second is added in order to keep UTC within 0.9 seconds of observed astronomical time.
添加闰秒是为了将UTC保持在观察到的天文时间的0.9秒范围内。
That's actually a pretty dramatic change on astronomical time scales.
在天文时间表上这实际上是相当戏剧性的变化。
Anomalies of astronomical time-latitude residual before earthquakes are considerably general phenomena.
天文时纬残差震前异常是一种相当普遍的现象。
The question of the cause of the anomalous deviation of the results of the astronomical time and latitude determinations before a strong earthquake has been analysed in this paper.
本文分析了引起强震前天文测时测纬异常现象的原因问题，认为这种异常主要是地下水活动引起垂线变化的结果。
The question of the cause of the anomalous deviation of the results of the astronomical time and latitude determinations before a strong earthquake has been analysed in this paper.
本文分析了引起强震前天文测时测纬异常现象的原因问题，认为这种异常主要是地下水活动引起垂线变化的结果。
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