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radioactive substance
释义
radioactive substance
Encyclopedia
工学
〔危险化学品类别〕
释
radioactive substance
放射性化学品
放射性比活度大于7.4×104贝可/千克的物质。
Physics
原子核物理学、粒子物理学
原子核物理学
radioactive substance
放射性物质
Astronomy
radioactive substance
放射性物质
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