铁加上火成为钢。
To make meals, they made a fire inside an iron stove.
做饭也要先在炉子里生火。
Finally he found out how to refine iron and other metals with fire.
最终他发现了如何用火炼铁及其它金属。
To do ironing, they heated an iron over a fire.
要熨衣服的话，先得在火上把熨斗烧热。
Ductile Iron is a good choice for general service, fire protection and Hi-rise applications.
球墨铸铁是一般应用、防防火和高升应用的理想选择。
你的熨斗放在火上吗？
Many years ago men first heated iron ore in a fire.
许多年前，人们初次在火中锻烧矿石。
Can the sun fire up magma which in turn can melt iron and rock?
太阳会加热岩浆，以至融化铁和岩石吗？
Put sand in an iron cauldron and fry it with maltose on a fire.
先把沙子放入大铁锅中和麦芽糖一起翻炒。
Put sand in an iron cauldron and fry it with maltose on a fire.
先把沙子放入大铁锅中和麦芽糖一起翻炒。
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