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 application and research on the tungstic catalysts are reviewed in petroleum processing and petrochemicals, including hydrocracking, hydrofining, catalytic oxidation and acidic catalysis.
回顾了钨催化剂在石油炼制和石油化工新技术中的应用现状和研究进展,包括加氢裂化、加氢精制、催化氧化、酸催化等技术。
The application and research on the combination of GIS and GPS was improved and deepened by theoretical analysis and practical application. It will bring great meaning in theory and practice.
通过理论分析与实践应用,使得GIS与GPS相结合的应用研究得以进一步提高和深化,对实际工作应用具有重大的理论意义和现实意义。
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