Sunday, March 24, 2024
Sunday, September 11, 2022
Tuesday, October 31, 2023
问题:锰硅合金生产中,对原料白云石MgO的要求是()A、≥10%B、≥15%C、≥17%D、≥19%
Wednesday, December 27, 2023
Saturday, November 11, 2023
Sunday, September 11, 2022
Monday, April 3, 2023
Saturday, November 18, 2023
Thursday, December 21, 2023
Monday, November 14, 2022
Wednesday, April 10, 2024
Monday, April 3, 2023
Thursday, March 9, 2023
Sunday, March 24, 2024
问题:为避免硅铁粘模,在铁锭吊出后应用水冷却红锭模,并在热状态下()℃下用玻璃水或硅微粉泥浆刷锭模。A、15-60B、150-250C、250-280D、60-900
Monday, June 12, 2023
问题:冶炼锰硅合金要求锰矿要有更高的()和(),所用的锰含锰量越高,各项指标越好。
Sunday, September 11, 2022
Wednesday, April 10, 2024
问题:25000KVA电炉的电极直径为()㎜A、1000B、800C、1100D、1250
Saturday, November 18, 2023
Wednesday, April 10, 2024