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密度测井仪
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密度测井仪
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density logging device
密度测井仪
以伽马射线与地层相互作用为基础,利用同位素伽马源向地层辐射伽马射线,在一定源距外探测各种散射伽马射线,以测定地层密度的核测井仪器。又称散射伽马能谱测井仪。
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balance principle
balancer
balance receptors
balance rope
balance shaft
Balance sheet
balance sheet for water resources
balance sheet of urban development land
balance theory
balance wheel
balancing calculation
balancing drum
balancing equation of population
balancing machine
balancing-multiplier method
balancing production
balancing-selection theory
Balangzikumu of Tajik nationality
balanophora family
balanoposthitis
Balanta
balantidiasis
balas
balata
balayage
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