grade of silk quality

• 成熟度

grade of silk quality的用法和样例：

例句

1. One of the chief factors in determining maturity is user adoption.
   判断成熟度的一个主要因素是用户的采用程度。
2. All CMMs are constructed with five levels of maturity.
   所有的能力成熟度模型都有五个成熟度等级构成。