Bessemerizing
吹氧, 脱碳操作, (酸性)转炉吹(冶炼)法
🗣️ 情景例句
History repeats itself.
历史往往会重演。
A good face needs no paint.
美貌无需擦脂抹粉。
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。