计算月亮的白道经度，是中国古代数理天文学之月亮运动理论的核心内容之一。
A main aim of the lunar motion theory in ancient China is to calculate the longitude of the Moon at the lunar orbit at any given time.
本文通过对于《至大论》这样一部古希腊数理天文学经典著作的解读和研究，重点做了以下工作。
The Greek astronomer Ptolemy, who dealt with mathematical astronomy in Almagest, is systematically studied in this doctoral dissertation.
那些视数理专家如问题的一部分的人就像“辛普森”事件中的暴民一样对于陨石击中城镇的反应就是要求因该把天文台焚毁掉。
Those who see them as part of the problem are like that mob in an episode of "the Simpsons" that reacts to a meteorite hitting the town by calling for the observatory to be burned down.
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