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理学
氧族元素
释
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。
Astronomy
全称:selenium。缩写:Se
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Chemistry
>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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order of an algebraic equation
order of an algebraic surface
order of an algebraic system
order of an element
order of a net
order of an infinitesimal
order of an infinity
order of an operator
order of a number
order of a numerical method
order of a permutation
order of a plane
order of a point
order of a pole
order of a polynomial
order of a power series
order of approximation
order of a predicate
order of a ramification
order of a semigroup
order of a set
order of a spline
order of a square matrix
order of a surface
order of a tensor
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