词汇	ratio of concentrarion
释义	ratio of concentrarion 选矿比
随便看	a friable rock a frequency band a frequency dictionary of german A Frequency Dictionary of Spanish A frequency of one million megahertz A frequency of one million megahertz,10 ?12?Hz a frequented street Afrera afrerheat reclaim afres ground combat readiness center afresh a fresh-air fiend a fresh batch of dough a fresh batch of visitors a fresh breeze A fresh breeze puffed across the river a fresh coat of paint A fresh coat of paint can transform a room a fresh complexion A fresh complexion a fresh-fruit shipment A fresh gale a fresh hand A fresh idea flashed upon his mind A Fresh Look at Collectivism