refractory ore的例句大全

China has become a major country in producing and exporting refractory products and raw materials. Much foreign exchange has been earned. But zircon ore, chrome ore and some high grade refractories still need to be imported from abroad.

我国已成为耐火制品与原料的生产和出口大国，为国家获取了较多外汇，但锆矿、铬矿与少量高级耐火材料仍需要进口。

Study on the Technological Flow Sheet of processing a Refractory Copper Sulphide Ore

某难选硫化铜矿石选矿工艺流程研究

Flotation of Tonglushan refractory oxidized copper ore using a new-type reagent B 130 was investigated paper.

本文研究了新型选矿药剂B130浮选大冶铜绿山氧化铜矿.

Thiosulfate leaching of refractory copper-bearing and low grade oxide ore in Mexico

硫代硫酸盐法浸出墨西哥某低品位、难处理含铜金矿石的研究

Nonequilibrium Stochastics of Arsenic Changing During the Pretreatment of Refractory Gold Ore

难处理金矿预处理过程中砷转化的非平衡随机统计