古汉语的床母和禅母在佛典译音中的面貌与宋元等韵图标示的相反。文章指出这是早期译经者在初学第二语言时发生语音替代的结果,不一定意味着古汉语某个方言把床母读成了擦音而把禅母读成了塞擦音。由把床母读成擦音而把禅母读成塞擦音产生的音系不代表某个实际的汉语方言。 The ancient Chinese bed mother and Zen mother in the transliteration of the Buddha and the rhyme map such as Song and Yuan on the contrary. The article points out that this is the result of early generations of second-language translators who took voice substitutions when they first started their second language, which did not necessarily mean that a certain dialect in ancient Chinese had read the mother-in-law as a rubbing sound and read Zen Buddhism as a rubbing sound. The phonetic system produced by reading the bed mother into a rubbing sound and reading it as a rubbing sound does not represent an actual Chinese dialect.