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1·The short-period anomalous fluctuations of observations of astronomical time and latitude before major earthquakes were discussed.

本文讨论了大地震前天文时间和纬度观测结果的短周期异常波动涨落。

2·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。

3·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。

4·This paper about the phenomenon of anomaly of astronomical time-latitude residuals before major earthquake occurred around observatory.

本文叙述了光学天文时纬观测资料的残差在仪器周围地区发生强地震前夕出现短期异常波动的现象。

5·In order to obtain higher measured accuracy of star's positions by the low-latitude meridian circle, it is needed to measure the astronomical refraction to the stars of different spectral types.

提出在低纬子午环上，对不同光谱型的天体测定出天文折射，以提高星位测定的精度。