fine aggregate造句

1、The FAA of fine aggregate should be less than 45%;
细集料未压实空隙率FAA不宜小于45%；

2、It is adopts s type distribution valve. It satisfies to pump fine aggregate concrete.
采用先进的S管形式的分配阀，满足细骨料混凝土的泵送。

3、Dividing criterion between coarse and fine aggregate was set by use of Marshall Test.
利用马歇尔击实试验确定了粗细集料的分界标准。