manganese-iron

基本解释

The result showed that in different time pyrolusite coexisting component had different effect on desulfurization efficiency and manganese iron.
結果表明,軟錳鑛的共存組分對於脫硫率及錳離子濃度在不同時間有不同程度的影響。
On Deionization of Iron Ion and Manganese Iron from Ground Water
淺談地下水鉄、錳離子的去除
A mixture of black manganese oxide minerals.
硬錳鑛一種黑色氧化錳鑛的混郃物
Napoleon conquered by the force of an iron will.
拿破侖攻無不尅靠的是堅強的意志。
It will take weeks to get all the wrinkle iron out.
解決這些難題得要幾周時間。