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Chinese Text Project
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Scope: 卷下 Request type: Paragraph
Condition 1: Contains text "以東井夜半中牽牛之初臨子之中" Matched:1.
Total 1 paragraphs. Page 1 of 1.

卷下

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11 卷下:
立周度者,各以其所先至游儀度上。車輻引繩,就中央之正以為轂,則正矣。日所以入,亦以周定之。欲知日之出入,即以三百六十五度、四分度之一而各置二十八宿。以東井夜半中,牽牛之初臨子之中。東井出中正表西三十度十六分度之七,而臨未之中,牽牛初亦當臨丑之中,於是天與地税,乃以置周二十八宿。置以定,乃復置周度之中央立正表。以冬至、夏至之日,以望日始出也,立一游儀於度上,以望中央表之晷。晷參正,則日所出之宿度。日入放此。

Total 1 paragraphs. Page 1 of 1.