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近年來(lái)，世界經(jīng)濟(jì)增速持續(xù)減緩，尤其是主要經(jīng)濟(jì)體增速的普遍下降……
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Four major signals, the new era of global mining is open!

Release Time：2019-10-25   Edit：ZHK   Access：4871
Key Word：四大信號(hào) 全球礦業(yè)新時(shí)代
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