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The mining company earns a fifth of its profit from oil and gas resources.
矿产公司从石油和天然气资源获得利润占其总利润利润的五分之一。
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Mining method of oil extraction by the open and underground mining.
石油的开采办法由露天开采和地下开采。
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Mining method of oil extraction by the open and underground mining.
石油的开采办法由露天开采和地下开采。
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