短語詞組短語membership degree functions 隸屬度函數membership functions mfs 隸屬度函數linear membership functions 線性隸屬函數generating membership functions 隸屬函數生成information of membership functions 隸屬度函數信息fuzzy membership functions 模糊隸屬函數;函數triangular membership functions 三角形隸屬函數shrinking span membership functions 收縮間距隸屬函數rough membership functions rough 隸屬函數 返回 membership functions