氧化铁

Slab temperature variation entering the mill would be closely controlled, and exposure to air and consequent scalling would be minimized.

由于板坯进入轧机后温度受到严格控制，暴露的部位极少，因而可将氧化铁皮减少到最低程度。

The surface defect appeared mainly as air bubbles and ferroferric oxide drops which centred around the lower outer - field portion of the stoneware cup.

表观缺陷主要表现为釉泡和氧化铁颗粒,且其集于体下部外侧面。

The compositions of phyllosilicate and iron oxides for several main types of soils and their corresponding iron-manganese nodules were studied by the means of XRD.

以我国几种常见土壤及相应土壤铁锰为试验材料，应用X-射线衍射，研究了土壤和铁锰层状硅酸盐和氧化铁的类型组合。