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an abstract number
In algebra, an abstract number is treated without referring to any specific unit.
在代数中，不名数被视为不涉及任何具体单位的数字。
抽象数；不名数
先理解核心含义，再看它在真实句子里的用法。
抽象数；不名数
A number considered without reference to objects or units, such as 6, 8, or 10; when applied to things, e.g. 6 feet or 10 men, it becomes a concrete number.
In algebra, an abstract number is treated without referring to any specific unit.
在代数中，不名数被视为不涉及任何具体单位的数字。
不应用于具体事物的数,如6、8、10；但应用于事物时,如6英尺、10人,则成为具体的数。
A number used without application to things, e.g. 6, 8, 10; but when applied to anything, e.g. 6 feet, 10 men, it becomes concrete.
In algebra class, the teacher explained that an abstract number like 7 differs from a concrete number like 7 meters.
在代数课上，老师解释说像7这样的不名数不同于像7米这样的名数。
When calculating the area of a square, you multiply the side length by itself, and the result is an abstract number representing square units.
计算正方形面积时，将边长自乘，结果是一个表示平方单位的不名数。
In physics equations, abstract numbers often appear as coefficients, such as the 2 in F = ma, which has no unit.
在物理方程中，不名数常作为系数出现，例如F=ma中的2，它没有单位。
In algebra, an abstract number is treated without referring to any specific unit.
在代数中，不名数被视为不涉及任何具体单位的数字。
The abstract number 5 can represent five apples or five miles.
不名数5可以代表五个苹果或五英里。
Abstract numbers are essential for general mathematical operations.
不名数对于一般的数学运算至关重要。
We can consider the quantity as an abstract number without units.
我们可以将这个量视为没有单位的不名数。
Not this
A abstract number has no units.
Use this
An abstract number has no units.
由于 'abstract' 以元音音素开头，不定冠词应用 'an' 而不是 'a'。
Not this
'Happiness' is an abstract number.
Use this
'Happiness' is an abstract noun.
在英语中，表示性质或状态的概念词为抽象名词，而非抽象数；'abstract number' 指不附单位的纯数。
Not this
The abstract numbers are used in pure mathematics.
Use this
Abstract numbers are used in pure mathematics.
当泛指一类事物时，复数名词前不需要定冠词 'the'。
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可数名词，常以复数形式 abstract numbers 出现；与具体事物连用时（如 6 feet）不再是不名数。
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 WIKTIONARY.