数学术语词汇第9课单词卡片_数学术语单词卡_数学术语在线背单词_数学术语单词卡记忆法

1/20 报错

subset [ˈsʌbset]

释义：: n.子集

例句：: Each subset is determined by some occurrence of these three events.
每一个子集,由这三种事件出现的情况而决定. 换一句; A subset S of a ring A is a subring of A.
环A的子集S叫作A的子环. 换一句; This would enable the production of subset catalogues by subject.
这将使按主题编制子集合目录成为可能. 换一句

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2/20 报错

subtract [səbˈtrækt]

释义：: v.减

例句：: Please subtract a quarter of the money for your own use.
请从你的零用钱中扣除四分之一. 换一句; Subtract four from nine and you have five.
九减四得五. 换一句; In their first year at school, most children learn to add and subtract.
入学第一年, 多数孩子都学加减法. 换一句

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3/20 报错

subtraction [səbˈtrækʃən]

释义：: n.减

例句：: The difference is found by subtraction.
用减法得出差额. 换一句; The plus sign is used in addition and the minus is used in subtraction.
加号用于加法;减号用于减法. 换一句; There will be simple tests in addition, subtraction, multiplication and division.
会有对加、减、乘、除运算的简单测试。换一句

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4/20 报错

subtrahend [ˈsʌbtrəhend]

释义：: n.减数

例句：: When you subtract two numbers, you subtract a subtrahend from a minuend.
当你作两个数的减法时, 你用一个被减数去减另一个减数. 换一句

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5/20 报错

sum [sʌm]

释义：: n.和

构词：: sum总,加→n.总数,和;金额;算术题;要旨 v.合计,总计

例句：: For his first book he received the princely sum of $ 400.
他写第一本书得到了400元“巨款”. 换一句; You have only 100 words in which to sum up his speech.
你只能用100字来概括他的讲话. 换一句; The gangsters offered him a sum equivalent to a whole year's earnings.
歹徒提出要给他一笔相当于他一年收入的钱. 换一句

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6/20 报错

tangent [ˈtændʒənt]

释义：: n.正切

例句：: The graph of a concave function is always below its tangent.
一个凹函数的图象总在它的切线的下方. 换一句; The tangent may be used to find the direction.
这方向也可用正切求得. 换一句; For? 0 we naturally get a circle; for? 0 we obtain two tangent circles.
对? 0我们当然得到一个圆; 对? 0得到两个相切的圆. 换一句

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7/20 报错

tetrahedron [ˈtetrəˈhedrən]

释义：: n.四面体

例句：: The center of inscribed circle of tetrahedron is called incenter.
四面体内切球的球心称为四面体的内心。换一句; We can now use tetrahedron and hexahedron elements in three - dimensional stress analysis.
我们现在在三维应力分析中采用四面体单元和六面体单元. 换一句; Each tetrahedron shares two of its oxygens with neighboring tetrahedra.
每个四面体都有两个氧原子是与其相邻的两个四面体共用的. 换一句

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8/20 报错

theorem [ˈθi:ərəm, ˈθɪərəm]

释义：: n.定理

例句：: I agree with the theorem that the best defence is offence.
我同意最好的防御是进攻的理论. 换一句; His theorem can be translated into simple terms.
他的定理可用更简单的术语来解释. 换一句; By the corollary to Theorem 4.3, the origin is asymptotically stable.
根据定理4.3的推论, 原点是渐近稳定的. 换一句

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9/20 报错

times [taɪmz]

释义：: v.乘

例句：: He was four times sacked and four times reinstated.
他被解雇4次,又4次恢复原职. 换一句; In medieval times the church held sway over many countries.
在中世纪,教会支配着许多国家. 换一句; They always helped us on in times of difficulty.
在我们遇到困难时,他们总是鼓励我们. 换一句

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10/20 报错

trapezoid [ˈtræpizɔid]

释义：: n.梯形

例句：: A trapezoid is a quadrilateral with two parallel sides.
梯形是具有两平行边的四边形. 换一句; In section configuration, the depressions are either triangle or reversed trapezoid - fenestra structure.
剖面形态上, 这些断陷不是三角形就是倒梯形,即所谓的“花窗结构”. 换一句; The program for parts with trapezoid thread is simplified by this method.
采用此方法可以简化具有梯形螺纹结构零件的数控车削加工程序的编写. 换一句

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11/20 报错

triangle [ˈtraiæŋɡl]

释义：: n.三角形

例句：: The hypotenuse is the longest side of a right triangle.
直角三角形的斜边是直角三角形中最长的边. 换一句; The base angles of an isosceles triangle are equal.
等腰三角形的底角相等. 换一句; He drew a right triangle.
他画了一个直角三角形. 换一句

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12/20 报错

trigonometry [ˌtrɪgəˈnɔmɪtri:]

释义：: n.三角

例句：: We may determine the height of a mountain by trigonometry.
我们可用三角原理测定山的高度. 换一句; He received a low mark for trigonometry.
他的三角学分数很低. 换一句; The climax of this work was the development of trigonometry.
三角术的发展是这项工作的高峰. 换一句

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13/20 报错

union [ˈju:njən]

释义：: n.并集

例句：: They made the appointment of Peter as chairman of the union.
他们任命彼得为工会主席. 换一句; The union resolved to strike by 40 votes to 18.
工会以40票对18票通过决议举行罢工. 换一句; In a rousing speech, the President hit out against the trade union.
在一次令人振奋的讲话中, 总统对工会进行了猛烈的抨击. 换一句

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14/20 报错

unknown [ʌnˈnəʊn]

释义：: n.未知数

例句：: People usually infer an unknown fact from a known fact.
人们通常从已知的事实中推断未知的事实. 换一句; Motherhood was for her a journey into the unknown.
做母亲当时对她来说是开始一次探险之旅. 换一句; To her the outside world was a totally unknown quantity.
对她来说,外部世界完全是个未知数. 换一句

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15/20 报错

variable [ˈvɛəriəbl]

释义：: n.变量

例句：: The variable weather is a great trial to me.
这种多变的天气真是让我受不了. 换一句; He is of a variable mood ; he never finishes what he starts.
他这个人朝三暮四,做起事来总是虎头蛇尾. 换一句; Speed was a variable in the experiment.
在该实验中速度是个变数. 换一句

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16/20 报错

variance [ˈveəri:əns, ˈvær-]

释义：: n.方差

例句：: The good in him was a constant variance with the bad.
他善良的一面经常和邪恶的一面发生矛盾. 换一句; The question of woman suffrage sets them at variance.
妇女参政的问题使他们发生争执. 换一句; As long as your interests and mine were at variance I could give you no counsel on this subject.
只要你我的利益有冲突,我就不能在这个问题上向你提出任何忠告. 换一句

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17/20 报错

volume [ˈvɔlju:m]

释义：: n.体积

例句：: This volume records the history of the country's revolution.
这卷书记载了这个国家的革命历史. 换一句; Pressure varies directly with temperature and inversely with volume.
压力随温度成正比例变化,与容积成反比例变化. 换一句; A supplementary volume has been published containing the index.
附有索引的增补卷已经出版. 换一句

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18/20 报错

weight [weit]

释义：: n.权

例句：: He had lost weight and the suit hung loosely on him.
他瘦了,西装穿在身上松松垮垮的. 换一句; He is walking proof that people can lose weight quickly.
他是人能迅速变瘦的活见证. 换一句; The gross weight of the box of chocolates is 500 grams.
那盒巧克力的全部重量是500克. 换一句

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19/20 报错

width [widθ]

释义：: n.宽

例句：: We can't get it through the door because of its width.
我们无法使它通过这道门,因为它太宽了. 换一句; Use a rule to measure the width of that cloth.
用尺子量一下那块布的宽度. 换一句; Each fold in the skirt should be exactly the same width.
裙子每条皱折的宽度应该完全一样. 换一句

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20/20 报错

x-axis [ˈeksˌæksis]

释义：: n.坐标轴

例句：: The chest X - rays showed moderate enlargement of the heart.
胸部 X 光片显示出心脏稍有扩大. 换一句; She went to the hospital for an X - ray yesterday.
她昨天去医院作了 X 光检查. 换一句; They X - rayed her leg to find out if the bone was broken.
他们用 X 光检查她的腿骨是否断了. 换一句

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