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yttrium
释义
yttrium
[ˈitriəm]
钆:一种极稀有金属,属铈类,符号Y,原子序数39,原子量88.905,钆的放射性固位素,原子质量90,半衰期64小时,发出β辐射,可植入体内治疗瘙瘤,或在神经切断术之类操作中,用以制作损害。Z
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更新时间:2025/9/3 0:03:26