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to phrases
quadratic form
busin. 二次形
cryptogr. 二次齐次多项式
math. 二次型，二次形式; 二次形式; 二次齐式
met. 二次式
stat. 二次齐次式; 二次形式
tech. 方形
wind. 二次型
quadratic form: 22 phrases in 3 subjects
Business3
General3
Technology16

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