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22 (五b) |
21 (五a) |
24 (六b) |
23 (六a) |
26 (七b) |
25 (七a) |
28 (八b) |
27 (八a) |
30 (九b) |
29 (九a) |
Song Yingxing, Tian gong kai wu, 1637
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