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词汇
geometric mean
释义
geometric mean
几何平均数,等比中项
几何级数各项的连乘积,以项数为开方指数所取得的根值,称为几何平均数。
构成等比级数的若干个数,处於中间位置之数,即称为两端数的等比中项。
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更新时间:2026/4/19 16:18:31