质量管理体系–要求

3.3、关键特性

是一种属性或特性，其变化将对产品装配,成形，功能，性能 ,使用寿命或可制造性产生重大影响，因而要求特定的措施对其变化进行控制。

3.3、Key Characteristic

An attribute or feature whose variation has a significant effect on product fit, form, function, performance, service life, or producibility, that requires specific actions for the purpose of controlling variation.