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北京地質(zhì)學(xué)會(huì) | 關(guān)于舉辦“地質(zhì)鉆探技術(shù)”高級(jí)研修班的通知
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Beijing Geological Society | Notice on Holding an Advanced Seminar on "Geological Drilling Technology"

Release Time：2023-03-17   Edit：ZHK   Access：2322
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