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Actinium

[æk'tɪnɪəm]

解釋/意思:

(noun.) a radioactive element of the actinide series; found in uranium ores.

編輯:威尔玛--From WordNet

解釋/意思:

(n.) A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.

校對:卢埃林

例句/造句/用法:

卡门錄入

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