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一、钢铁在人类社会发展中的地位在人类社会发展的历史中,人类所使用的工程材料大致经历了以下几个发展阶段:1、石器和竹木器阶段;2、陶器和瓷器阶段;3、铜器和锡器阶段;4、铁器阶段。可以看出,金属在人类社会发展的历史中占有相当重要的地位,现代文明正是建立在钢铁大量应用的基础之上的。虽然有人预料,21世纪后,人类将进入铝器和塑料时代。但钢铁仍将继续占统治地位。二、黑色金属的自然资源和社
I. The Status of Iron and Steel in the Development of Human Society In the history of the development of human society, the engineering materials used by mankind have basically gone through the following stages of development: 1, stages of stoneware and bamboo wood; 2, pottery and porcelain stages; 3, Bronze and tin stage; 4, iron stage. It can be seen that metal occupies a very important position in the history of the development of human society. Modern civilization is based on the extensive use of steel. Although it is expected that after the 21st century, humans will enter the era of aluminum and plastic. But steel will continue to dominate. Second, the natural resources of black metal and clubs