精选优质文档-倾情为你奉上A abbreviation 简写符号;简写absolute error 绝对误差absolute value 绝对值accuracy 准确度acute angle锐角acute-angled triangle 锐角三角形add 加addition 加法addition formula 加法公式addition law 加法定律addition law(of probability)(概率)加法定律additive property 可加性adjacent angle 邻角adjacent side 邻边algebra 代数algebraic 代数的algebraic equation 代数方程algebraic expression 代数式algebraic fraction 代数分式;代数分数式algebraic inequality 代数不等式algebraic operation 代数运算alternate angle (交)错角alternate segment 交错弓形altitu