low grade mineral 低品位矿石
low-grade mineral resources 低品位矿产资源
low grade mineral resources 低品位矿产资源
low-grade zinc mineral 低品位锌矿
low-grade barium mineral 低品位钡矿
low-grade copper mineral 低品位铜矿
It is considered that use of direct extraction technology for recovery of low-grade mineral resources is the trend of The Times and broad in prospects.
认为采用湿法浸出直接提取技术回收低品位矿产资源是大势所趋,前景广阔。
Recently, in situ leaching and heap leaching are the most advanced technology for mining low grade mineral resources in the world.
地浸与堆浸是当今世界上采冶开发低品位矿产资源最先进的技术。
Se is a kind of scarce and scatter element, and it is very low-grade ore in mineral.
硒是一种稀少而又分散的元素,矿石中其品位一般都很低。
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