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本文提出了一种(?)的经验表达式 (?)=0.00292(E_0~(1.58)-E_0~(1.28))-0.015 (?)单位为mg/cm~2,此表达式的提出,是以已经公开发表的试验数据为基础,利用计算机作辅助拟合成的,13个数据的拟合偏差RMS为3.59%,此表达式的计算准确度与D.A.Sewell等人提出的(?)表达式的计算准确度作了比较。
In this paper, an empirical expression of (?) = 0.00292 (E_0 ~ (1.58) -E_0 ~ (1.28)) -0.015 (?) Is expressed in mg / cm ~ Based on the published test data and computer aided fitting, the fitting error RMS of 13 data is 3.59%. The calculation accuracy of this expression is in agreement with the expression of (?) Proposed by DASewell et al. The calculation accuracy is compared.