镉、铅、汞和锰的检测都表明处于正常值范围。

Tests for cadmium, lead, mercury and manganese have shown levels within the normal range.

youdao

氧化还原反应在铁和锰的增溶和沉淀中具有重要作用。

Oxidation - reduction reactions are important in the solubilization and precipitation of iron and manganese.

youdao

氧化还原反应在铁和锰的增溶和沉淀中具有重要作用。

Oxidation-reduction reactions are important in the solubilization and precipitation of iron and manganese.

youdao