英语词汇spherical excess怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	spherical excess
释义	spherical excessn.Mathematics（名词）【数学】 The difference between the sum of the angles of a spherical triangle and the sum of the angles of a plane triangle.球面过剩：球面三角形的三个角之和与平面三角形的三个角之和的差数
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