1) lower grade limestone
低品位石灰石
1.
A successful practice of using lower grade limestone as raw material in cement production
低品位石灰石作为水泥生产原料的成功实践
2) Low-purity limestone
低品位石灰岩
3) low-grade ore
低品位矿石
1.
A research on dressing process optimization of low-grade ore in Zijinshan gold mine;
紫金山金矿低品位矿石选矿工艺优化研究
2.
The categories of the bacteria and its leaching mechanism are key factors for the bioleaching of low-grade ore.
微生物种类及其作用机理是浸出低品位矿石的关键所在。
3.
This paper deals with a pilot study for recovery of copper from refuse of dressing plant, from low-grade ore and from refractory oxidized ore using heap leaching,extraction,and electrodeposit techniques.
本文阐述了江西铜矿山在生产中产生的选矿废石、低品位矿石、地表难选氧化矿石,采用堆浸、萃取、电积工艺回收铜,在矿坑酸性废水中回收铜以及在选矿排出的尾矿中再次回收有用金属的试验研究与生产实践的效果及二次资源回收利用前景。
4) low grade ore
低品位矿石
1.
The geological characteristics of Chai Hu Lan Zi Gold Deposit of Chifeng City and the exploitation of low grade ore;
赤峰市柴胡栏子金矿床地质特征及低品位矿石的开发利用
5) low grade ores
低品位矿石
1.
Based on the conception and controlling factors, delineation evaluation of low grade ores, the comprehensive utilization of low grade ores are systematically studied.
从低品位矿石的概念及其确定因素、资源的综合评价、矿体的合理圈定等方面，阐述了露采铜矿低品位矿石的综合利用问题，由此可使矿山获得可观的经济效益和社会效益，并为国家制定铜工业的产业政策和发展规划提供依
6) poor quality oil reserves
低品位石油储量
补充资料：低品
1.犹言下等。
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