velocity

CET-6 大学 FREQ #12001 ★☆☆☆☆

n. 速度, 迅速 [化] 速度

发音

UK /vəˈlɒsəti/
US /vəˈlɑsəti/

词形变化

velocities 复数 velocities

别名

vel. V PVT

教材释义与例句

名词

速度

释义与例句

n.
  1. 1.

    A vector quantity that denotes the rate of change of position with respect to time, combining speed with a directional component.

    速度

    可数 不可数 物理

    A car racing in a circle may retain the same speed while continually changing its velocity.

  2. 2.

    A rapidity of motion.

    可数 不可数

    The train was travelling at a slower velocity than usual.

  3. 3.

    The number of times that an average unit of currency is spent during a specific period of time.

    周转率

    可数 不可数 金融
  4. 4.

    The value corresponding to how hard a key is struck on a MIDI controller or keyboard.

    可数 不可数
  5. 5.

    The rate of occurrence.

    可数 不可数

词汇关系

名词

同义词 1

speed

上位词 1

rate

下位词 10

c airspeed angular velocity escape velocity groundspeed hypervelocity lightspeed muzzle velocity radial velocity speed of light

相关短语

velocity potential [化] 速度势 velocity dispersion velocity curve velocity curves velocity dispersions velocity potentials constant-velocity joint escape velocity 逃逸速度 [电] 逃脱速度 terminal velocity [化] 终极速度; 终端速度 angular velocity [化] 角速度 group velocity [计] 群速 [化] 群速 root mean square velocity 均方根速度 radial velocity [化] 径向速度 instantaneous velocity [化] 瞬时速度 phase velocity [化] 相速

词源

From Middle French vélocité, from Latin vēlōcitās (“speed”), from vēlōx (“fast”), thus a doublet of veloce.

来源：wiktionary