Monday, September 12, 2022
Monday, January 2, 2023
Sunday, May 21, 2023
Friday, December 9, 2022
Saturday, December 2, 2023
问题:何谓“间接”、“直接”还原?在平衡状态、还原剂消耗量及反应的热效应等方面各有何特点?...
Thursday, December 8, 2022
Saturday, April 20, 2024
Tuesday, February 6, 2024
Tuesday, March 26, 2024
Wednesday, March 27, 2024
Monday, February 6, 2023
问题:热风炉倒流休风的操作内容包括: ①开热风阀 ②通知高炉 ③开烟道阀 ④开燃烧阀。 正确的操作顺序是()A、①②③④B、②③④①C、③④①②D、④①②③...
Tuesday, March 26, 2024
Tuesday, February 6, 2024
Saturday, January 13, 2024
问题:厚料层烧结工艺的主要目的是为了提高烧结矿生产能力。...
Thursday, September 14, 2023
Sunday, December 24, 2023
Thursday, December 8, 2022
Saturday, January 7, 2023
问题:目前炼钢过程希望的铁水Si含量一般为多少,铁水硅含量的高低对转炉冶炼会产生什么影响。...
Thursday, October 12, 2023
Saturday, April 20, 2024