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钍
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Encyclopedia
工学
核燃料
释
thorium
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天然放射性元素。元素符号Th,原子序数90,原子量232.0381,锕系放射性元素。
理学
放射性元素
释
thorium
钍
天然放射性元素,元素符号Th,原子序数90,原子量232.0377。属周期系ⅢB族,锕系元素。以北欧神话中的雷神托尔(Thor)命名。
Astronomy
全称:thorium。缩写:Th
钍
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
thorium
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Archival Documents of the Preparation for Constitutional Government in the Late Qing Dynasty
archival documents of the Wuchang Uprising in 1911 Revolution
Archival Documents on Earthquakes in Qing Dynasty
archival duplication
archival duty appointment system
archival education institution
archival entity security
archival evidence
archival exhibition
archival faceted classification language
archival finding aid
archival finding aids type of guide
archival indexing
archival information classification60
archival information product
Archival Informatization Construction Practice
archival legal work
archival management of aviation
archival management of Chinese Communist Party in New Democratic Revolution Period
archival memory viewpoint
archival number
archival opening
archival ownership
archival paper-mounting technology
archival paper-repair technology
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