1·The test research to optimize processing parameters had been carried out systemically for Bi roughing of certain multi-metal ore containing Bi, Zn and Fe.
对某铋锌铁多金属矿的铋粗选工艺进行了系统的参数优化试验研究。
2·The device using a wide, both for the high consistency pulp roughing purification. Before the machine can also be used for low consistency pulp cull purification.
该设备使用面广，既可用于高浓度纸浆的粗选净化。也可用于纸机前，对低浓度纸浆进行精选净化。
3·Uses for pulp roughing and purification. the joints, film and other impurities will weed out through Frequency vibration in the rough slurry. The fine pulp will go into a next process.
用于纸浆的粗选、净化。通过频率振动将粗浆中的骨节，薄膜及其它粗大杂质筛出。
4·The device using a wide, both for the high consistency pulp roughing cleaned before the machine can also be used for selection of a low concentration pulp purification.
该设备使用面广，既可用于高浓度纸浆粗选净化，也可用于纸机前对低浓度纸浆进行精选净化。
5·The results show that a rare-earth concentrate with a grade of 52% can be obtained by one roughing and two cleanings.
结果表明，经一次粗选、二次精选选别，可获稀土精矿品位52％。
1·A new approach to master speed control is proposed, in which coil box and roughing mill and finishing mil are combined with each other as master-slave device.
提出了一种热卷箱与粗轧和精轧互为主从的主令速度控制新方法。
2·Two-Stand Hot reversing mill is a reversing mill, two stand roll can realize roughing phase and finishing phase, large-scale rolling force, good shape.
双机架炉卷热轧机是典型的往复式轧机，它的两个机架实现粗轧和精轧，轧制压力大，板型精度高。
3·Roughing setting up mathematic model is adopted in the width control of 1780 mm hot strip mill of Anshan Iron and Steel Group Corporation.
在鞍钢热轧带钢厂1780生产线的宽度控制中，主要采用了粗轧设定数学模型。