优化选别流程提高有用矿物综合利用水平_建筑施工论文 关键词 :优化选别流程;有用矿物;综合回收利用 [gap=374]Keywords: optimization choose don't process; Useful mineral; Comprehensive recycling
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useful l mineral 有用矿物
Britain also had useful mineral resources.
英国还有可用的矿产资源。
Britain had many rivers, which were useful for transport but also for water and steam power. Britain also had useful mineral resources.
英国许多河流不仅用于交通,还提供水力及蒸汽动力。英国还有可用的矿产资源。
There was a place in ancient Greece called Magnesia and this place was a source of several useful mineral products back in ancient times.
在古希腊有个叫Magnesia的地方,这里早在远古时期就盛产许多矿石。
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