mining ore grade meaning in Chinese

采矿等级

On the basis of the statistical analysis of the annual production data of aoshan concentrator , the mathematical models for the relationship of the concentrate quality indexes ( concentration ratio , concentrate grade and recovery ) with run - of - mine ore grade and hourly throughput per unit were established and analysis of their relationship was made , which has a direct effect on guiding the concentrators production and ensuring the concontrate quality
通过对凹山选矿厂全年生产报表数据的统计分析，分别建立了精矿质量指标(选矿比、精矿品位、精矿回收率)与原矿品位、台时处理量之间的数学模型，并对其之间的相互关系作了分析，对指导凹山选矿厂生产、保证精矿质量有着直接的指导作用。