文档介绍：A abbreviation简写符号;uracy准确度acuteangle  锐角acute-angledtriangle锐角三角形add加addition加法additionformula加法公式additionlaw加法定律additionlaw(ofprobability)(概率)加法定律additiveproperty可加性adjacentangle邻角adjacentside邻边algebra代数algebraic代数的algebraicequation代数方程algebraicexpression代数式algebraicfraction代数分式;代数分数式algebraicinequality代数不等式algebraicoperation代数运算alternateangle(交)错角alternatesegment交错弓形altitude高;高度;顶垂线;高线ambiguouscase两义情况;二义情况amount本利和;总数analysis分析;解析analyticgeometry解析几何angle  角angleatthecentre圆心角angleatthecircumference圆周角anglebetweenalineandaplane直与平面的交角anglebetweentwoplanes两平面的交角anglebisection角平分anglebisector角平分线;分角线angleinthealternatesegment交错弓形的圆周角angleinthesamesegment同弓形内的圆周角angleofdepression俯角angleofelevation仰角angleofgreatestslope最大斜率的角angleofinclination倾斜角angleofintersection相交角;交角angleofrotation旋转角angleofthesector扇形角anglesumofatriangle三角形内角和anglesatapoint同顶角annum(X%perannum)年(年利率X%)anti-clockwisedirection逆时针方向;返时针方向anti-logarithm逆对数;反对数anti-symmetric反对称apex顶点approach接近;趋近approximatevalue近似值approximation近似;略计;逼近Arabicsystem阿刺伯数字系统arbitrary任意arbitraryconstant任意常数arc弧arclength弧长arc-cosinefunction反余弦函数arc-sinfunction反正弦函数arc-tangentfunction反正切函数area面积arithmetic算术arithmeticmean算术平均;等差中顶;算术中顶arithmeticprogression算术级数;等差级数arithmeticsequence等差序列arithmeticseries等差级数arm边arrow前号ascendingorder递升序ascendingpowersofXX的升幂associativelaw结合律assumedmean假定平均数assumption假定;假设average平均;平均数;平均值averagespeed平均速率axiom公理axis轴axisofparabola拋物线的轴axisofsymmetry对称轴B backsubstitution回代barchart棒形图;条线图;条形图;线条图base(1)底;(2)基;基数baseangle底角basearea底面baseline底线basenumber底数;基数baseoflogarithm对数的底bearing方位(角);角方向(角)bell-shapedcurve钟形图bias偏差;偏倚billion十亿binarynumber二进数binaryoperation二元运算binaryscale二进法binarysystem二进制binomial二项式binomialexpression二项式bisect  平分;等分bisectionmethod分半法;分半方法bisector等分线;平分线boundarycondition边界条件boundaryline界(线);边界bounded有界的boundedabove有上界的;上有界的boundedbelow有下界的;下有界的boundedfunction有界函数brace大括号bracket括号breadth阔度brokenlinegraph折线图  C calculation计算calculator计算器;计算器cancel消法;相消canellationlaw消去律capac