1·This paper describes the effects of preconcentration technology in iron ore beneficiation, application conditions; also introduces the applications of new preconcentration technology and equipments.
简述了预选技术在铁矿石生产应用的作用，应用的条件，介绍了选矿预选新工艺、新设备在矿山的应用。
2·Chinas new advances in the beneficiation technology, equipment and flotation reagents for producing high quality iron concentrate are outlined.
概述了我国高质量铁精矿在选矿工艺、设备和浮选药剂等方面所取得的新进展。
3·Rapid advance of the beneficiation and comprehensive utilization technologies have provided its development and utilization with mature process technologies.
选矿及综合开发利用技术进步较快，为该资源开发利用提供了成熟的工艺和技术。
4·The resource features, the design of the beneficiation process, the benefit estimation of Qinghai celestite ores and the problems to be further studied were described comprehensively.
对青海省天青石矿的资源特点、选矿工艺的设计、效益估算及有待进一步研究的问题进行了综合论述。
5·Indium is one of Chinas preponderant scattered metals; it is often associated with polymetallic zinc ores and enriched into zinc sulfide concentrates after beneficiation.
铟是我国的一种优势稀散金属资源，常与多金属锌矿伴生，经过选矿后，铟主要富集于硫化锌精矿中。
1·The osmotic gas beneficiation on another surface of films and diffusion in the air.
渗透气体在膜的另一表面上富集，并向空气扩散。
2·Through the study of concentration of heavy metal in farmland from the city epigenetic irrigated area, the difference of their ability of beneficiation and health risks were analyzed and compared.
通过对试验区内玉米、小麦和土壤中重金属含量的研究，分析比较了作物对重金属的富集能力和健康风险。