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《 算式略》[View] [Edit] [History]
1  | 依式是三正弦为方 正字上大矢为长阔较开四个方得小球半径三大矢为长阔较开一个方 为小球全径寅己方三倍午己方己卯为半较得酉己即为小球径 |
| 2 | 六面体内容八 面体其二体比例若何 |
| 3 | 汪凤藻 |
URN: ctp:ws632851
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