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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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trivial center
trivial character
trivial circuit
trivial class
trivial cohomology functor
trivial crossed homomorphism
trivial decomposition
trivial deformation
trivial dependence relation
trivial derivation
trivial-dimensional domain
trivial disk knot
trivial divisor
trivial edgecut
trivial element
trivial embedding
trivial equality
trivial extension
trivial extension algebra
trivial factor
trivial fiber bundle
trivial fiber space
trivial fibration
trivial field
trivial file transfer protocol
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