Ptolemy charted more than 1000 stars in 48 constella-tions.
托勒密繪制了48個(gè)星座1,000多顆恒星的星位圖。
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Ptolemy's model of the universe with the Earth at the center.
托勒枚的以地球?yàn)橹行牡挠钪婺Ｐ?
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Is the most famous astronomer Ptolemy.
最為著名的天文學(xué)家是托勒密.
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The really important thing about Ptolemy's map was that north was at the top.
托勒密所繪制的地圖有一點(diǎn)是十分重要的,那就是他把北方置于地圖的上方.
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