The present status of application and research on pretreatment of refractory gold ore with ultra fine grinding is briefly introduced in this paper.
简述了超细磨预处理难浸金矿石的应用研究现状。
The relation between power electronics and micro-electronics, present status and future trends and application of power electronics technology are described in this paper.
本文介绍电力电子技术与微电子技术的关系及电力电子技术的发展趋势及应用。
The present status of research and application result on dynamic theory of strip rolling were introduced.
介绍了板带轧制动态理论的研究现状和应用结果。
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