“standard device for ground radioactivity survey”的概念、定义、翻译、参考文献-科学参考

单词	standard device for ground radioactivity survey
释义	standard device for ground radioactivity survey Encyclopedia 理学放射性勘探计量设施释 standard device for ground radioactivity survey地面放射性测量模型标准装置由天然K、U、Th矿石（粉）与石英砂、水泥混合制成的含有一定放射性物质的混凝土模块。
随便看	mass transfer enhancement mass transfer resistance mass transfer separation method mass transfer technology and engineering mass transport mass transport equation mass transport process massula mass unit Mass Video News mass yield MAST Mastaba mast aerial working platform mast cell mast cell growth factor mast cell leukemia mast climbing work platform mast-climbing work platforms mast/derrick master Master Anqi master-apprentice teaching system master black belt masterboard

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