单选题通过磨矿作业主要使原矿中有用矿物达到()。A 单体分离B 品位提高C 细磨D 富集...
Friday, May 17, 2024
Tuesday, February 6, 2024
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, May 25, 2023
按分级任务的不同,分级可以分成预先分级、检查分级和()分级三种...
Thursday, September 22, 2022
Sunday, November 27, 2022
单选题一般磨矿给矿硬度大,磨矿介质的直径应()些。A 大B 中C 小...
Tuesday, July 11, 2023
立磨的设计产量与()、磨辊数量及宽度、喷咀环面积、()、磨通风量等因素有关。...
Tuesday, September 20, 2022
单选题表示矿物颗粒大小的程度称为()。A 粒度B 网目C 比重...
Thursday, May 25, 2023
Saturday, June 1, 2024
测量轴径的轴线和磨机是否一致,两者误差在每米长度上不许大于()mm。检查大齿轮和小齿轮的啮合情况及大齿轮安装在筒体上的同...
Thursday, September 22, 2022
多选题以下属于弱磁性矿物的矿石是()A赤铁矿B褐铁矿C菱铁矿D铬铁矿...
Monday, August 7, 2023
Thursday, September 22, 2022
你所操作的磨机驱动电机额定功率为()kW,转子额定电压是()V。...
Friday, September 16, 2022
填空题比磁化率大于35×10-6米3/千克的矿物称为()。...
Monday, May 8, 2023
填空题重力选矿,是根据矿物()不同而分离矿物的选矿方法。...
Monday, May 8, 2023
单选题自磨机靠()介质达到磨矿的目的。A 靠矿石本身B 砾石C 钢球D 铁球...
Tuesday, January 23, 2024