Wednesday, October 11, 2023
Tuesday, September 13, 2022
问题:主成分、杂质成分和添加成分各自起到的作用是什么?...
Wednesday, August 23, 2023
问题:影响耐火原料破粉碎的因素,主要是原料本身的强度、硬度、塑性和水份等,同时也与()设备的特性有关。A、破粉碎B、粉碎C、细磨...
Wednesday, October 11, 2023
Tuesday, September 13, 2022
Tuesday, May 9, 2023
Tuesday, May 9, 2023
Wednesday, October 11, 2023
问题:砖坯的干燥过程一般分为两个阶段进行,即等速干燥阶段和减速干燥阶段。...
Sunday, January 1, 2023
问题:白云石质耐火材料的基本化学组成为()A、Al2O3和SiO2B、Al2O3和MgOC、MgO和CaOD、MgO和Cr2O3...
Tuesday, May 9, 2023
Friday, November 24, 2023
Tuesday, December 6, 2022
Thursday, December 22, 2022
Sunday, February 26, 2023
问题:确定泥料材质配方时,主要考虑制品的质量要求,保证制品达到规定的()性能指标。A、性能指标B、经济指标C、要求...
Thursday, January 11, 2024
Thursday, November 17, 2022
问题:以下哪种耐火制品属于酸性耐火材料()A、镁砖B、硅砖C、刚玉砖D、碳砖...
Tuesday, May 9, 2023
问题:影响耐火制品外形尺寸准确性的因素很多,例如生产中原料质量不稳定,砖模设计时的()不当,装窑方法不当以及烧成温度波动过大等,都会影响耐火制品外形尺寸的准确性。...
Wednesday, August 23, 2023
问题:()的工作原理:当气动阀门控制的压缩空气由气孔进入,则另一个气孔排器,活塞向下运动。A、摩擦轮B、液压轮C、操作气缸...
Saturday, June 3, 2023
Saturday, June 3, 2023