content of six elements

• 六种元素含量

content of six elements的用法和样例：

例句

1. Suitable minerals containing these two elements are still avidly sought.
   目前还在竭力寻找含有这两种元素的适用材料。
2. They expected to see low concentrations above the shoreline and larger concentrations below.That would indicate that the elements had been leached out of the soil by the water.
   科学家们利用这种分光计来测量他们所猜测的古老海洋海岸线之上及其下面的钾，钍，铁三种元素的含量。