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自然γ射线石油测井仪
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自然γ射线石油测井仪
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伽马射线石油测井
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natural gamma ray petroleum well logger
自然γ射线石油测井仪
通过测量井眼内的γ射线能谱和井眼周围地层中铀、钍、钾等多种放射性元素的含量,计算出地层相关物质的组成成分的核仪器。
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Symbol, Culture, City: Five Questions on Cultural Criticism Philosophy
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