In the foundry, she saw hot liquid iron being poured to make the machines.
VOA: special.2009.05.10
Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, iron, why is Mars red?
水银是液态金属,水银,行星,是肉眼能看到的运动最快的天体,火星,铁,为什么火星是红色的?
麻省理工公开课 - 固态化学导论课程节选
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