例句與造句

1. 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
   通過對凹山選礦廠全年生產(chǎn)報表數(shù)據(jù)的統(tǒng)計分析，分別建立了精礦質(zhì)量指標(選礦比、精礦品位、精礦回收率)與原礦品位、臺時處理量之間的數(shù)學模型，并對其之間的相互關系作了分析，對指導凹山選礦廠生產(chǎn)、保證精礦質(zhì)量有著直接的指導作用。
2. It's difficult to find mining ore grade in a sentence. 用mining ore grade造句挺難的