iron scale的用法和样例：
例句
- Rust was eating away the iron supports.
铁锈腐蚀着铁柱。 - As rust eats iron,so care eats heart!
就像铁锈能腐蚀铁一样，忧虑能伤心！ - Complete removal of rust and mill scale by acid pickling, duplex pickling or electrolytic pickling.
通过酸液或电解质的浸洗除去所有的锈迹和氧化皮。 - The iron flings align themselves in the direction of the magnetic field.
铁屑按磁场的方向排列。 - Printing and dyeing wastewater was treated by the two wastes, iron scraps and fly ash.
摘要利用废铁屑与粉煤灰两种废物集合处理印染废水。
