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我国钢铁工业自动化发展的第二阶段1)1973~1987年。国际上已进入大规模全线自动化的计算机控制,这一新事物复杂而新颖,国内
The second phase of the development of China’s iron and steel industry automation 1) 1973 ~ 1987. Internationally, it has entered a large-scale computer control of automation across the board. This new thing is complicated and novel. The domestic