Word · Frequency #26519
deceleration
减速；减速过程
核心释义
The action or process of slowing down.
- 1.
减速的行为或过程
The act or process of decelerating.
- 2.
速度或速率减小的量(标量或矢量),负加速度
The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity), an acceleration having a negative numerical value.
减速度；负加速度；减速的行为或过程；速度或速率减小的量(标量或矢量),负加速度；减速；[医] 减速[度]
用法In use
The car's sudden deceleration threw the passengers forward.
用法提示：deceleration 作名词，表示‘减速’这一过程。
This graph shows the deceleration of the rocket as it enters the upper atmosphere.
用法提示：deceleration 为名词，指速度降低的过程或量。
The pilot reported a slight deceleration during the final approach.
用法提示：deceleration 是名词，在此处表示‘减速’的状态或事件。
the deceleration of sth
指减速的过程，通常为不可数名词。
The deceleration of the train was gradual.
火车减速的过程是缓慢的。
deceleration in sth
用于表示某一指标或活动速度的下降，常见于经济语境。
相关词与表达Connections
搭配Collocations
- sudden deceleration
- 突然减速
- The sudden deceleration threw passengers forward.突然减速使乘客向前倾倒。
- gradual deceleration
- 逐渐减速
- The train's gradual deceleration made the stop smooth.列车逐渐减速使停车平稳。
- deceleration lane
- 减速车道
- Use the deceleration lane to slow down before exiting the highway.驶出高速公路前使用减速车道降低车速。
- deceleration force
- 减速力
- The seatbelt reduces the deceleration force on your body.安全带减少身体受到的减速力。
- economic deceleration
学习提示Learner notes
记忆技巧Memory Tip
把 acceleration（加速）开头的 ac 想成“增加”，换成 de（下降），就是 deceleration（减速）；学单词时联想“de-减 + celeration加速”。
语境与语域Context & Register
语域：formal 常见场景：physics、engineering、transportation deceleration 通常属于较正式的表达，多用于物理学、工程、交通等需要描述减速过程或减速量（负加速度）的场合；日常口语中更常说 slow down 等说法。
发音与拼写Pronunciation & Spelling
All six words share the final sound /eɪʃən/ with deceleration, so they rhyme. Acceleration is especially close because it also contains the spelling chunk -celeration. Beware the spelling lookalike decelerate (verb), pronounced /ˌdiːˈsɛləreɪt/, which does not rhyme.
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.