《明史·志·卷九》
半径六十度八十七分半，是大三斜中弦。
半径六十零度八十七分半，为大三斜中弦。
A radius of sixty degrees and eighty-seven and a half minutes is the middle string of the large triangle.
<s>[INST] Transpose the following Modern Chinese text into Classical Chinese: 半径六十度八十七分半，是大三斜中弦。 [/INST] 半径六十零度八十七分半，为大三斜中弦。</s>
Transpose the following Modern Chinese text into Classical Chinese: 半径六十度八十七分半，是大三斜中弦。
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半径六十零度八十七分半，为大三斜中弦。
assistant