| 释义 |
harmonic mean 【数学】调和平均，调和中项，调和中数 以上来源于：《21世纪大英汉词典》 harmonic meann.【数】调和平均详细释义源自:《新世纪英汉大词典》Collins外研社 n.调和平均【数学】英英释义n.the mean of n numbers expressed as the reciprocal of the arithmetic mean of the reciprocals of the numbersharmonic mean‘数’调和中项harmoni |