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受到严格，露在空气中的部位极少，因可将氧化铁皮减少到最低。

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

果你不经常洗头发，油脂导致的结垢将影响头发的生长。