“radioactive materials”的概念、定义、翻译、参考文献-科学参考

单词	radioactive materials
释义	radioactive materials Encyclopedia 工学违禁物品释 radioactive materials放射性物品放射性物品有广义和狭义之分。广义的放射性物品泛指能够放射出射线的物品。狭义的放射性物品是指含有放射性核素且比活度和放射性总活度分别超过基本限值的物品。
随便看	fourfold fourfold axis fourfold classification fourfold knot fourfold [symmetry] axis fourfold symmetry axis fourfold table four-force four forms four forms of law of the Song Dynasty four fractions four frame Four Freedoms four-frequency differential laser gyroscope four fundamental keys four fundamental operations four fundamental rules Four Garrisons of Anxi Protectorate Four-gate Boxing Four-gate Pagoda Four Generations Four Generations under One Roof four genres of storytelling Four Girls four gods

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