最早测量地球大小的是古希腊天文学家埃拉特色尼。
The first measurement of the size of the earth is the ancient Greek astronomers, Ella characteristics.
公元2世纪，古希腊天文学家托勒密综合了当时的天文成就，编制了48个星座。
In 2nd century AD, the Greek astronomer Ptolemy combined astronomical achievements at the time, compiled the 48 constellation.
星等分类的方法沿用了超过2000年，由古希腊天文学家Hipparchus于公元前125年创立。
The magnitude of a star is based on a scale more than 2,000 years old, devised by Greek astronomer Hipparchus in about 125 BC.
星等分类的方法沿用了超过2000年，由古希腊天文学家Hipparchus于公元前125年创立。
The magnitude of a star is based on a scale more than 2, 000 years old, devised by Greek astronomer Hipparchus in about 125 BC.
（萨摩斯的）阿里斯塔克斯：古希腊天文学家，是首先提出太阳是宇宙的中心，以及地球围绕太阳运行理论的天文家之一。
Greek astronomer who was among the first to propose that the sun is the center of the universe and that the earth moves around the sun.
流星学便是天文学的其中一个分支。Meteorology（气象学）一词的词根“meteoros”要追溯到古希腊时期。
The root of the word “meteorology” goes back to ancient Greek where meteoros meant “raised” or “lofty.”
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.
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.
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