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natural γ-ray logger
释义
natural γ-ray logger
Encyclopedia
工学
天然放射性勘查仪器
释
natural γ-ray logger
自然γ测井仪
利用岩石的放射性,将γ射线探头放入钻井孔中,一边提升一边测量,记录井壁岩层某一能量范围的总γ射线强度以及相应点深度的仪器。
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OFET
OFET memory
off-axis aberration
off-axis angle
off-axis Cassegrain telescope
off-axis distribution
off-axis effect
off-axis ellipsoidal mirror
off-axis English mounting
off-axis Gregorian telescope
off-axis guider
off axis hologram
off-axis hologram
off-axis holography
off-axis image
off-axis imaging
off-axis mounting
off-axis observation
off axis point
off-axis point
off-axis system
off-axis tensile method
off-axis three-mirror anastigmat camera
off-axis three-mirror optical system
off-band observation
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