The relations among the fuzzy qualified event, the fuzzy unqualified event, the mendable fuzzy unqualified event and the non-mendable fuzzy unqualified event of the parts are analyzed.

分析了零件模糊合格事件、零件模糊不合格事件、零件可修复模糊不合格事件和零件不可修复模糊不合格事件之间的关系。