| 单词 | masurium |
| 释义 | masuriummasurium(məˈsʊərɪəm)masuriummasurium:see technetiumtechnetium[Gr. technetos=artificial], artificially produced radioactive chemical element; symbol Tc; at. no. 43; mass no. of most stable isotope 98; m.p. 2,200°C;; b.p. 4,877°C;; sp. gr. 11.5 (calculated); valence +4, +6, or +7. ..... Click the link for more information. . |
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