本文指出,除了梵汉对音、朝鲜译音和汉越音等材料,重纽三、四等韵的对立还能在汉泰关系词、壮语方言里得到印证。材料显示,重纽三等字的表现有:(1)带-r-或-l-介音,(2)韵母元音偏央后,或读合口韵母,(3)主元音低化为[a];重纽四等则读[e]之类的前高元音,同时与纯四等韵合流。 This article points out that in addition to the Sanskrit vowels, transliterations of Korean and Vietnamese phonetic transcriptions, the opposition between the rhymes of the third and the fourth rhyme can also be confirmed in the Chinese-Thai relations, Zhuang dialect. Materials show that heavy nubuck three words of the performance are: (1) with-r- or -l-mediated, (2) vowel central vowel, or read vowels, (3) the main vowel low to [a]; Heavy New Fourth Reading [e] is like the former high vowel, at the same time and pure four rhymes.