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Logging while drilling method and apparatus for measuring formationcharacteristics as a function of angular position within a borehole?keyword=Logging while drilling method and apparatus for measuring formationcharacteristics as a function of angular position within a borehole?keyword=Logging while drilling method and apparatus for measuring formationcharacteristics as a function of angular position within a borehole?keyword=Logging while drilling method and apparatus for measuring formationcharacteristics as a function of angular position within a borehole 专利,更快更准确