测定了不同提取液中微量元素含量计算并比较了提取率。

The extraction rates of the trace elements with different preparations were determined and the comparative study was made.

youdao

测定了不同提取液中微量元素含量计算并比较了提取率。

The extraction rates of the trace elements with different preparations were determined and the comparative study was made.

youdao