It is proved that the attenuation curves of Mattews-leficovits and J. J. Arps(N=0.5) are the same, A kind of substitution model with reciprocal relation is proposed out.

• 文章证明卡彼托夫、马修斯-列弗柯维兹以及N＝0．5的阿普斯三种衰减曲线为同一曲线，并提出了一种倒数关系的替代模型；