thorium

[ˈθɔːriəm] [ˈθɔːriəm]

n. [化学]钍(放射性金属元素,元素符号 Th, 原子序数为90)

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    2023-03-27 22:12:37 2023-03-27 23:06:02 2023-03-27 23:29:15 2023-03-27 23:56:40 2023-03-27 22:32:54 2023-03-27 22:34:25 2023-03-27 23:16:50 2023-03-27 22:39:50 2023-03-27 23:14:35 2023-03-27 22:47:47 2023-03-27 23:43:32 2023-03-27 22:58:47 2023-03-28 00:14:35 2023-03-27 23:06:42 2023-03-27 23:47:28 2023-03-27 23:27:45 2023-03-27 22:19:05 2023-03-27 22:46:30 2023-03-27 23:32:18 2023-03-27 23:56:04