“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	chemical event chemical evidence examination chemical evolution chemical evolution of environment chemical evolution of galaxies chemical exchange chemical explosion chemical extraction chemical factor analysis chemical fertilizer chemical fertilizer industry chemical fertilizer pollution chemical fertilizer pollution prevention and control law chemical fertilizer wastewater chemical fiber chemical fiber drawing chemical fiber forming chemical fiber garment chemical fiber heatsetting chemical fiber industry chemical fiber mattress chemical fiber pillow chemical fiber quilt chemical fibers chemical fiber spinning

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