ferrum

This article introduces a rapid analysis and adjustment of the copper and ferrum impurities in nickelage solution.

本文主要介绍镀镍液中杂质铜、铁的快速分析调整方法。

The content of the available ferrum enhanced by recycled straws, but that of the available zincum, copper and manganese had no changed obviously in soil.

秸秆直接还田提壤的有铁含,但对有铜、有有锰含影响不大。