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，暴露在空气中的部位极，可将氧化铁皮减到最低程度。

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结核为试验材，应用X-射线衍射，研究了土壤和铁锰结核中层状硅酸盐和氧化铁的类型组合。

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

观缺陷现为釉泡和氧化铁颗粒,且其集中于杯体下部外侧面。