自从改革开放以来,我国炼铁技术取得了巨大进步,不仅表现在技术经济指标上显著提高,而且还表现在炼铁领域内多项技术、设备有了飞跃发展,其中有些已进入国际先进行列,有的已是国际领先水平。现在分述如下:1.高炉主要技术经济指标一大批炼铁企业的主要技术经济指标已进入国际先 Since the reform and opening up, tremendous progress has been made in ironmaking technology in our country, not only in terms of remarkable improvement in technical and economic indicators, but also in the rapid development of a number of technologies and equipment in the field of ironmaking, some of which have entered the international advanced ranks, Some are already at the international advanced level. Now divided as follows: 1 blast furnace main technical and economic indicators A large number of iron and steel enterprises in the major technical and economic indicators have entered the international