preconcentration

常见例句

The composition, work principle as well as measurement and control system of a new X-ray separator for ore preconcentration are presented.
介绍了新型矿石预选设备X射-线分选机的组成、工作原理及其测量操作系统。
Effect of the preconcentration technology on the development economic benefits of the deposit is discussed in this paper based on the technological and economic analysis.
在技术经济初步分析的基础上探讨了预选工艺对某银铅锌矿开发效益的影响。
The lean magnetite ore can be turned into one that has utilization value by wet preconcentration by magnetic separation after fine crushing to discard most of qualified waste.
通过采取细碎后湿式磁选预选方法，抛除掉大部分合格废石后，可以将该贫磁铁矿变成为具有开发利用价值的矿物。