《明史·志·卷十三》
方法详见前面。求影径定分：将月亮的影径分，减去影径减差分。
求影径定分置太阴影径分，内减影径减差分。
For details, see above. Ask for the fixed shadow diameter: subtract the difference of the shadow diameter from the moon's shadow diameter.
<s>[INST] Give the modern Chinese and English translation for the following Classical Chinese passage: 求影径定分置太阴影径分，内减影径减差分。 [/INST] Modern Chinese: 方法详见前面。求影径定分：将月亮的影径分，减去影径减差分。 English: For details, see above. Ask for the fixed shadow diameter: subtract the difference of the shadow diameter from the moon's shadow diameter.</s>
Give the modern Chinese and English translation for the following Classical Chinese passage: 求影径定分置太阴影径分，内减影径减差分。
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Modern Chinese: 方法详见前面。求影径定分：将月亮的影径分，减去影径减差分。 English: For details, see above. Ask for the fixed shadow diameter: subtract the difference of the shadow diameter from the moon's shadow diameter.
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