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time efficiency of drilling
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time efficiency of drilling
Encyclopedia
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钻探技术经济指标
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time efficiency of drilling
钻探时效
钻探生产中,各种工况的时间占钻探工作总时间的百分比。
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estuary
estuary and beach process
estuary and beach sediment transport
estuary and coastal sediment simulation
estuary delta of China
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estuary hypoxia area
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Estudio Del Ciclo Vital de Los Documentos
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e.s.u.
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E. Szemeredi
E. Szemeredi (1940—)
Es层电波传播
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eta 1 superoxo complex
eta 1-superoxo complex
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