the mix ratio的用法和樣例：
例句
- The characteristics and mixture ratio design of the polypropylene fiber shotcrete are introduced.
摘要介紹了聚丙烯纖維噴射混凝土的特點(diǎn)及其配合比設計。 - The mixing proportion of frest water concrete can be used for preparing seawater concrete.
海水拌和的混凝土配合比可以采用淡水混凝土的配合比。
