矿石中钨品位虽可得到提高，但采用机械选矿方法却难以较好回收。
Though W grade can be increased, it is difficult to better recover tungsten with mechanical beneficiation methods.
分析了流体力学在采掘机械中灭尘及液压系统、通风机械、选矿机械，尤其是在新型选矿机械中的应用。
Analyzed the application of hydrodynamics at the fields of removing of dust in excavate machine, hydraulic system, fanner machine, concentrator machine, especially the use in new concentrator machine.
其通过热力和物理应力地作用而快速地成型钢结构，为更重选矿设备机械的钢板加工提供了必要的设备支持。
Through the thermal and physical stress to function as quickly and into profiled steel structure, more heavy milling equipments mechanical steel plate provides the necessary equipment support.
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