Word · CEFR B2 · Frequency #2458
equation
方程式；等式
核心释义
A statement showing that two expressions are equal, typically containing an equals sign.
- 1.
The act or process of equating two or more things, or the state of those things being equal (that is, identical).
- 2.
An assertion that two expressions are equal, expressed by writing the two expressions separated by an equal sign; in mathematical problems, equations describe various essential aspects of the problem, each of which contributes to the resolution of the problem in part.
- 3.
A small correction to observed values to remove the effects of systematic errors in an observation.
等同；相等；订正；修正项；相等；等式；平衡；[化] 方程式; 等式; 反应式; 公式
用法In use
The teacher wrote the equation x + 5 = 10 on the blackboard.
用法提示：在此句中，equation 作为名词，表示数学中的等式。
In algebra class, we solved several quadratic equations.
用法提示：在此句中，equations 是 equation 的复数形式，仍作为名词，表示多个数学等式。
To find the value of y, you need to balance the equation.
用法提示：在此句中，equation 作为名词，是平衡操作的对象，表示数学等式。
solve an equation
The students learned how to solve quadratic equations.
学生们学会了如何解二次方程。
equation of ...
常用于数学或科学语境。
相关词与表达Connections
搭配Collocations
- solve an equation
- 解方程
- The students learned how to solve a quadratic equation.学生们学会了如何解二次方程。
- quadratic equation
- 二次方程
- A quadratic equation has the form ax^2 + bx + c = 0.二次方程的形式为 ax^2 + bx + c = 0。
- linear equation
- 线性方程
- This linear equation can be graphed as a straight line.这个线性方程可以画成一条直线。
- mathematical equation
- 数学方程
- Einstein's famous mathematical equation is E=mc^2.爱因斯坦著名的数学方程是 E=mc^2。
- balance the equation
学习提示Learner notes
记忆技巧Memory Tip
记忆：equ- 意为相等（equal），-ation 是名词后缀，合起来是‘等式’。
语境与语域Context & Register
中性语境，多用于数学、物理、化学等科学领域，表示两个表达式相等的关系。
发音与拼写Pronunciation & Spelling
All listed words share the same stressed vowel /eɪ/ and ending /ʃən/ (or /ʒən/ for equation). Words like 'question' (/ˈkwɛstʃən/) have a different stressed vowel /ɛ/ and are not rhymes.
用法优先级Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.