the content of Fe

• 铁含量

the content of Fe的用法和样例：

例句

1. The determination of the amount of iron in ore is very important.
   矿石中铁含量的测定是很主要的。
2. The iron content of grainy crystal was the most, acicular crystal taking second place.
   表面有粒状析晶的磁珠中铁含量最高，针状析晶磁珠次之。