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氧族元素
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selenium
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化学元素,元素符号Se,原子序数34,原子量78.971(8),属周期系ⅥA族。
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全称:selenium。缩写:Se
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>无机化学>无机化学基本概念与无机化合物>释义
selenium
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nonlinear model
nonlinear modulation and demodulation
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