1) ore dilution
矿石贪化
2) ore dilution control
防止矿石贪化
3) low grade ore
贪矿石
5) ore with clay
矿石泥化
6) ore depletion
矿石贫化
1.
The ore depletion reasons analysise of sub-level caving method;
无底柱分段崩落法矿石贫化原因分析
2.
Through founding the mathematics model in which the profit is aim function and depletive rate is independent variable, the effect of ore depletion on mine's economic benefit is analyzed quantitatively In order to control and decrease the ore depletion, the technology of geology and mining should be strengthened, and also with the field managemen
通过建立以利润为目标函数、贫化率为自变量的数学模型 ,定量分析了矿石贫化对矿山经济效益的影响。
补充资料：萤石(fluorite,fluorspar)
【萤石】(fluorite,fluorspar)又名“氟石”。化学成分`CaF_2`。等轴晶系。晶体呈立方体或八面体，较少呈菱形十二面体。集合体成块状或粒状。硬度4。比重3.18。玻璃光泽，通常呈黄、绿、紫等色，条痕白争。透明，性脆，解理平行，八面体完全。受紫外线照射发显著荧光。主要为热液成因，成萤石脉产出。是制取氟、氢氟酸及其他氟化物的原料。炼钢工业中用作助熔剂，搪瓷工业中用以制瓷釉，无色透明的晶体用作光学材料。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条