“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	fracture of optic canal fracture of sinuses fracture of skull fracture of sphenoid sinus fracture oftemporal bone fracture of the acetabulum fracture of the clavicle Fracture of the distal radius fracture of the pelvis fracture of the shaft of the humerus fracture of the spine Fracture of the ulna and radius fracture of tibial plateau fracture of tibiofibular shaft fracture of welded structure fracture of welding structure fracture opening fracture parameter fracture parameters fracture scale fracture strength fracture toughness fracture toughness of ceramics fracture toughness of steel pipe fracture toughness test at elevated temperature

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