一种化学元素(符号Th),原子序数为90。一种弱放射性、可延展、中等硬度的银白色金属,暴露在空气中会变黑。
thoriums — plural of thorium
一种化学元素(符号Th),原子序数为90。一种弱放射性、可延展、中等硬度的银白色金属,暴露在空气中会变黑。；钍；[化] 钍Th
一种化学元素(符号Th),原子序数为90。一种弱放射性、可延展、中等硬度的银白色金属,暴露在空气中会变黑。
A chemical element (symbol Th) with atomic number 90. A weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air.
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