初中老师讲解碳时候说玻璃刀上有金刚石,很硬,所以能裁玻璃,那为什么不能裁钢铁 化学可以帮助我们解决很多实际问题，请用化学知识解释下列生活中...
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玻璃硬而脆 钢铁软但韧性高玻璃的硬度是毋庸置疑的 钢可以做弹簧你见过玻璃弹簧么
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