This paper explores the categorization of traditional astronomy picture, maps, architectural drawings, mechanical drawings, drawings for agricultural uses.
本文以此文题，讨论了中国古代天文图、地图、建筑图、机械图、耕织图等图学名词的分类及其历史价值。
Experts say that according to traditional Chinese astronomy, the 5th day of the 5th month in lunar calendar is when the sun reaches its peak position in the year.
专家称，根据传统的中国天文学，农历5月5日，太阳在一年中达到最高点。
Experts say that according to traditional Chinese astronomy, the 5th day of the 5th month in lunar calendar is when the sun reaches its peak position in the year.
专家称，根据传统的中国天文学，农历5月5日，太阳在一年中达到最高点。
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