单词：emissive material
emissive material的用法和样例：
例句
- The radioactive material is stored in a special radiation-proof container.放射性材料贮存在防辐射的特殊容器内。
- Tongchuan city officials believe the radioactive material - and its protective container - are likely to have been melted down.铜川市官员认为，这快放射性材料，及其保护外壳，可能已经被熔化了。
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