In Chapter Two, finite power property and Abelian properties offuzzy regular language arediscussed, and some sigmficant conclusions are drawn, which offers an useful solution to theperplexing and interesting problem. 本文在第二章研究了Fuzzy正则语言的有限幂性质和交换性质，得到了一些重要结论，这为研究此令人倍感兴趣又很困惑的问题提供了方法。
S. in 1998: every regular language is regular component splittable. S.
S. in 1998: every dense regular language contains an imprimitive word. S.