計(jì)算題:從某選煤廠(chǎng)某月的原煤浮沉試驗(yàn)綜合表可知:-1.30g/cm3的產(chǎn)率為10.69%,1.30~1.40g/cm3的產(chǎn)率為46.15%,1.40~1.50g/cm3的產(chǎn)率為20.14%,問(wèn)理論分選密度為1.40g/cm3,不扣矸時(shí)密度±0.1的產(chǎn)率是多少?
密度±0.1的產(chǎn)率=46.15+20.14=66.29(%)