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| 非高炉炼铁 (【技】鉴于现代高炉对矿石和焦炭均有严格要求，人们期望研究出不用高炉的炼铁方法，即使用普通煤和铁矿粉的非高炉炼铁法。目前已投人生产或正在试验中的各类直接还原法、金属化球团法、生铁水泥法和熔融还原炼铁法等均属非高炉炼铁法。) | |||
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