“density logging device”的概念、定义、翻译、参考文献-科学参考

单词	density logging device
释义	density logging device Encyclopedia 工学中子测井仪释 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。
随便看	ethnic corridor of mountain and canyon ethnic corridor of mountain and river Ethnic Costume Museum, Beijing Institute of Fashion Technology ethnic costumes ethnic differences in drug response ethnic differentiation ethnic education geography ethnic enclaves ethnic equlity ethnic geography works ethnic ghettos ethnic group ethnic groups map ethnic language geography Ethnic Language Translation Committee of the Translators Association of China Ethnic Library of China Ethnic literature of China ethnic medicine ethnic minority archives Ethnic nationalism Ethnic Party ethnic prejudice ethnic residences ethnics ethnic series maps

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