单词 | potassium-42 |
释义 | potassium-42 [pǝ`tas·ē·ǝm ¦fȯr·dē`tü] NUCLEAR PHYSICS Radioactive isotope with mass number of 42; half-life is 12.4 hours, with β- and γ-radiation; radiotoxic; used as radiotracer in medicine. |
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