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钢铁工业是重工业中性质复杂,规模庞大的一个部门。现代化的大钢铁厂又叫作“钢铁联合企业”,包括矿山、采石场和许多工厂,从最初的原料开采(除了煤矿是属于燃料工业之外)一直到生产出最后的成品,全部生产过程是流水作业的,每一个环节息息相关,衔接十分密切。在这里有串列的火车运进原料和送出成品及废料,有特殊装置的火车,空中的吊车进或地下的机动运输辊道,
The iron and steel industry is a complex and large-scale sector of heavy industry. The modern large steel plant, also known as the “iron and steel complex”, includes mines, quarries, and many factories. From the initial mining of raw materials (except coal mines belong to the fuel industry) to the production of final finished products, the entire production process Is a streamlined operation, each link is closely related, very close convergence. There are tandem trains that carry in raw materials and deliver finished products and scrap, trains with special equipment, cranes in the air, or underground motorized roller conveyors.