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，暴露在空部位极，因可将氧化铁到最低程度。

If you are not washing your hair enough, greasiness can cuase a scalling problem which affects growth.

如果你不经常洗头发，油脂导致结垢将影响头发生长。