Word · Frequency #5887
velocity
速度
distance travelled per unit time
- 1.
A vector quantity that denotes the rate of change of position with respect to time, combining speed with a directional component.
表示位置随时间变化的矢量量,结合速度和方向。
- 2.
distance travelled per unit time
单位时间内移动的距离
- 3.
A rapidity of motion.
快速运动。
- 4.
The rate of occurrence.
发生的频率。
- 5.
The number of times that an average unit of currency is spent during a specific period of time.
在特定时间内平均货币单位的花费次数。
- 6.
The value corresponding to how hard a key is struck on a MIDI controller or keyboard.
在MIDI控制器或键盘上按键力度的数值。
表示位置随时间变化的矢量量,结合速度和方向。；单位时间内移动的距离；快速运动。；发生的频率。；在特定时间内平均货币单位的花费次数。
In use
The car's velocity increased as it went downhill.
Wind velocity can affect how fast a fire spreads.
The velocity of the river is higher after heavy rain.
at [adj] velocity
The car travelled at a high velocity.
汽车以高速行驶。
high/low velocity
velocity 常与 high, low 等形容词搭配表示速度大小。
The bullet has a very high velocity.
子弹具有很高的速度。
reach a velocity of [number]
The rocket reached a velocity of 28,000 km/h.
火箭达到了28,000公里每小时的速度。
Connections
Collocations
- high velocity
- 高速
- The bullet was fired at high velocity.子弹以高速射出。
- low velocity
- 低速
- The aircraft maintained a low velocity during landing.飞机在着陆时保持低速。
- constant velocity
- 恒定速度
- The car moved at a constant velocity on the highway.汽车在高速公路上以恒定速度行驶。
- initial velocity
- 初速度
- The initial velocity of the rocket was carefully calculated.火箭的初速度被仔细计算过。
- escape velocity
- 逃逸速度
- To leave Earth's orbit, a spacecraft must reach escape velocity.要离开地球轨道，航天器必须达到逃逸速度。
- velocity vector
Learner notes
Memory Tip
想象赛车在city里飙车，速度飞快，记住velocity就是速度。
Context & Register
正式/技术性。常用于物理学、工程学或体育科学中描述运动物体的速度大小和方向。
Pronunciation & Spelling
Words ending in '-ity' are spelling lookalikes; none rhyme with 'velocity' because the stressed vowel differs.
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。
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.