refractory ore meaning in English
难熔矿石
难熔炼矿石
难选矿石
Examples
- Study on technological mineralogy of donganshan refractory ores
东鞍山难选矿石工艺矿物学研究 - Test research on flotation of oxidized cu - pb refractory ore in shandong province
山东某氧化型难选铜铅矿选矿试验研究
难熔矿石
难熔炼矿石
难选矿石