一九七九年第一期《地球物理学报>登载了杨文采同志“二维与三维位场在频率域的等价定理”(以后简称“等价定理”)一文,其中有几处我们认为有问题。本着百家争鸣的方针,提出意见如下。(为了精简文字,本文中所用各种符号及公式编号均同“等价定理”一文,因此各项符号的意义请看原文。) In the first issue of the Chinese Journal of Geophysics in 1979, Comrade Yang Wen-ji published an article entitled “The Equivalent Theorem of Two-Dimensional and Three-Dimensional Fields in the Frequency Domain” (hereinafter referred to as the “Equivalent Theorem”), has a problem. In accordance with the principle of a hundred schools of thought, put forward the following opinions. (In order to streamline the text, the various symbols and formula numbers used in this paper are the same as the “equivalence theorem”, so the meaning of each symbol, please see the original text.)