degree substitution

• 取代度

degree substitution的用法和样例：

例句

1. The effects of degree substitution on retrogradation and anti-mycotic were less.
   取代度的变化对沉降性和抗霉菌能力影响不大。
2. Some methods could also determine the pattern of methylation or the degree of pectins acetylation.
   其中有些方法可以同时测定果胶的甲酯的取代方式或乙酰化取代度。