对clean环和semiclean环做了推广，给出了f-semiclean环的概念，讨论了f-semiclean环的一些重要性质。......

对semiclean环和f-clean环做了推广，给出了f-semiclean环的概念。讨论了f-semiclean环上的形式幂级数环和斜幂级数环的f-semiclean......

对clean环和semiclean环做了推广，给出了f-semiclean环的概念．讨论了f-semiclean环上的Morita系统环和三角矩阵环的f-semiclean性质．......