Some peculiarities of relations of phonetic gradation (as example of french and uzbek languages)

In this article, the problem of expression of the gradual relations between phonological units in a paradigm of vowels is considered. Comparative and comparative study of languages, especially the study of the gradual relations of phonetic and phonological units, is one of the main problems of modern linguistics. Materials of the French and Uzbek languages are compared on this basis opinion about their expressions in these languages are given.