短語詞組短語radioactive waste material 放射性廢物radioactive E material 放射性物質fallout radioactive material 放射性沉降物fallout of radioactive material 放射性散落物residual radioactive material 賸餘的放射性物質preservation of radioactive material 危險品貯存池radioactive material level instrument 放射性料位儀Naturally Occurring Radioactive Material 射性物質 返回 radioactive material