Word · CEFR C2 · Frequency #6244
proportional
比例的, 相称的
properly related in size, degree, or other measurable characteristics; usually followed by 'to'; having a constant ratio
- 1.
At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.
与...成常数比。两个量(数)成比例,如果一个量随另一个量算术上直接变化。符号:∝。
- 2.
Of a typeface, having characters with natural (non-uniform) width (in contrast to monospace typefaces).
字体中,字符具有自然(不均匀)宽度(与等宽字体相对)
与...成常数比。两个量(数)成比例,如果一个量随另一个量算术上直接变化。符号:∝。；字体中,字符具有自然(不均匀)宽度(与等宽字体相对)；比例的；相称的
In use
The amount of sugar you add should be proportional to the amount of flour.
In a well-designed experiment, the control group is proportional to the experimental group in size.
Her effort in the project was proportional to the reward she received.
be proportional to
表示两者在大小、程度等方面成比例。
The punishment should be proportional to the crime.
惩罚应与罪行相称。
be directly proportional to
The pressure is directly proportional to the temperature.
压力与温度成正比。
be inversely proportional to
Connections
Collocations
- directly proportional
- 成正比的
- The number of hours worked is directly proportional to the output.工作小时数与产出成正比。
- inversely proportional
- 成反比的
- Pressure and volume are inversely proportional in a gas.气体的压强和体积成反比。
- proportional to
- 与…成比例
- The punishment should be proportional to the crime.惩罚应与罪行相称。
- proportional representation
- 比例代表制
- Many countries use proportional representation in their elections.许多国家在选举中采用比例代表制。
- proportional tax
- 比例税
- A proportional tax takes the same percentage from all income levels.比例税对所有收入水平征收相同百分比的税。
Learner notes
Memory Tip
联想：pro（支持）+portion（部分）+al（的）→ 支持各部分按比例分配，即'比例的、相称的'。
Context & Register
通常用于数学和科学领域，表示比例关系；也可用于日常比较，语域中性。
Pronunciation & Spelling
All words share the common spelling pattern '-tional' and end with the sound /ʃənl/ or /ʃənəl/, but they do not rhyme with 'proportional' because the stressed vowel in 'proportional' is /ɒː/ while the stressed vowels in these words differ (e.g., /æ/, /eɪ/, /ɪ/, /əʊ/).
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.