oxid

I. oxid, include magnetic iron orered iron ore , brown iron ore, etc.

含铁氧化物的矿物有磁铁矿、赤铁矿、褐铁矿、钛铁矿等.

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The method and skill for balancing a complex oxid - reduction reaction equation are discussed in this paper.

本文介绍复杂氧化还原反应式配平的方法和技巧.

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