关于汉语和侗台语的介音问题

On Medials of Chinese and Kam-Tai Language

为了对汉语和侗台语的语音结构进行细致的比较研究，有必要对介音作一个比较严格的界定。介音是汉语音韵结构的重要组成部分。原始侗台语可能是有介音的，并且这些介音的一部分和中古汉语或上古汉语有对应关系。

It is necessary to give a clear definition to the medials of Chinese and Kam-Tai languages for the comparative study on the sound structures of the languages. Medials are the important parts of syllables of some Chinese dialects, especially the north, and also were in ancient Chinese. Medials are not found in modern Kam-Tai languages, but must exist in the Proto-Kam-Tai, and parts of them should have some correspondent relationship to the medials of Chinese of middle ancient and ancient times.