substitution value

• 取代值,取代度

substitution value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. Rheological properties of hydroxypropylated corn starch with high molar substitution and its affecting factors were studied.
   研究了高取代度羟丙基玉米淀粉溶液的流变学性质及其影响因素。