Ainda não temos significados para "known metal".
1Aluminium is a light, well- known metal with lots of useful properties.
2And it's the little- known metal indium that's the problem.
3There is no known metal, and perhaps no substance whatever, which demands so high a temperature to fuse it as does the element carbon.
4It is a bradawl, and its handle bears the name of Grandidier, which is that of a man who keeps some well- known metal works.
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