mixture rate的用法和样例：
例句
- The characteristics and mixture ratio design of the polypropylene fiber shotcrete are introduced.
摘要介绍了聚丙烯纤维喷射混凝土的特点及其配合比设计。 - The coopera-ting rate of decarbonized coal fly ash concrete was researched and used to fulfil the pavement repair work.
进行了脱炭粉煤灰混凝土配合比等方面的试验研究，并在路面修复工程中应用脱炭粉煤灰完成了试验路修筑工作。
