英:[vəˈlɒsəti]
美:[vəˈlɑːsəti]
英:[vəˈlɒsəti]
美:[vəˈlɑːsəti]
ve·loc·i·ty
v la sih ti
复数:velocities
noun
quickness of motion : speed
the velocity of sound
rapidity of movement
[my horse's] strong suit is grace & personal comeliness, rather than velocity—Mark Twain
speed imparted to something
the power pitcher relies on velocity—Tony Scherman
the rate of change of position along a straight line with respect to time : the derivative of position with respect to time
rate of occurrence or action : rapidity
the velocity of historical change—R. J. Lifton
rate of turnover
the velocity of money
flow velocity流速
velocity field速度场;流速场
velocity distribution速度分布
wave velocity波速
high velocity高速;高速度
gas velocity气流速度
angular velocity角速度
wind velocity风速;风矢量
low velocity低速度
air velocity气流速度;风临度
velocity measurement速度测量
velocity of flow临;流动速度
group velocity群速
particle velocity粒子速度;质点(振动)速度
space velocity空速
linear velocity线速度
constant velocity匀速;等速度;恒速度
vibration velocity振动速度
critical velocity临界速度
average velocity平均速度
这组词都有“速度、速率”的意思,其区别是:
pace普通用词,指步行的速度,常引申指活动的进度或生产率。
rate作“速度”讲时,与speed同义,可换用。作速率解时,指相对增长的速度,也指两种相比较而得出的标准速度。
speed普通用词,指单位时间内行进的固定速度或速率,也指可能达到的最高速度。
velocity技术用词,指物体沿着一定方向运动时的速率。
以上来源于网络
"15世纪早期,源自拉丁语 velocitatem(主格 velocitas)“迅速,速度”,源自 velox(属格 velocis)“迅速的,快速的,迅速的”,起源不明,可能与 vehere “携带”(来自 PIE 根 *wegh- “走,移动,在车辆中运输”)有关,或者来自 PIE *weg-slo-,是 *weg- “强壮,活泼”的后缀形式。
速度
速度
速度
速度面积法
velocity-area method 测量流动横截面上多个局部速度,通过在该整个横截面上的速度分布的积分来推算流量的方法。
流速
在某一特定方向上,水流在某点的运动速率。
速度
周转率
Middle English velocite, borrowed from Anglo-French & Latin; Anglo-French veloceté, borrowed from Latin vēlōcitāt-, vēlōcitās, from vēlōc-, vēlōx "swift, rapid" (of uncertain origin) + -itāt-, -itās -ity Note: If going back to earlier *ueg-s-l-o-, perhaps a derivative from the base of vegēre "to give vigor to, enliven" (see vegetate) or vehere "to convey" (Indo-European *u̯eǵh-; see vehicle), assimilated to the -ōk- of ātrōx, ferōx (see atrocious, ferocious). Alternatively, a derivative *uē-lo-, from the Indo-European base *h2u̯eh1- "blow" (hence, "windlike"; see wind >entry 1) has been suggested.
The first known use of velocity was in the 15th century
velocitynoun
quickness of motion : speed
the velocity of sound
the rate of change of position along a straight line with respect to time
rate of occurrence or action
the velocity of political change
1 Before Newton, generations of physicists had thought about phenomena such as force, acceleration, mass, and velocity.
2 An infinitesimal fraction of a second prior to the bomb’s detonation, two particles collide with such fierce velocity that they form a micro singularity—a black hole too small to see with the naked eye.
3 So the velocity of the particle will be disturbed by a larger amount.
4 Occasionally, one member of a double-star system explodes, breaking the gravitational shackles that bound its companion, which then leaps into space at its former orbital velocity, a slingshot in the sky.
5 Heisenberg's uncertainty principle shows that there is no possible way to measure the pencil’s length—or an electron’s position—and its velocity with perfect accuracy at the same time.
6 That wasn’t exactly a confidence builder for the man preparing to ride it into orbit, but it was the more powerful Atlas that would be required to accelerate the Mercury capsule to orbital velocity.
7 No accurate measure of the wind’s velocity was made during the fire, though many eyewitnesses claimed it was as strong as a hurricane.
8 It’s a blur now, as it was then, and all I remember is velocity and the feel of a steering wheel in my hands.
9 Internal wiring of computer and business equipments requiring high transmission velocity.
电脑和企业设备内部用高速传输线.
10 The hare darted off with the velocity of a bird.
野兔像鸟一样快速掠去.
11 Based ANN ( Artificial Neural Network ), a new method for predicting the velocity of coal oxidation.
提出利用人工神经网络技术进行煤氧化速率定量预测的新方法.
12 And then velocity—wings and engines—a smiling stewardess—but it was more than a plane, it was a real bird, a big sleek silver bird with feathers and talons and high screeching.
13 Lashing velocity of pump is concerned with nature of air.
泵的抽气速率与气体的性质有关.
14 Gazelles can move with astonishing velocity.
羚羊跑起来速度惊人。
15 But maybe that is our mistake: maybe there are no particle positions and velocities, but only waves.
16 And acceleration is nothing more than the derivative of velocity, x.
17 The series of equations we needed to work described the parameters of thrust coefficient, nozzle-throat area, combustion-chamber cross-sectional areas, and velocity of the gases predicted for any particular propellant.
18 Wind nymphs zipped around the room, delivering orders of pizza, burgers, steaks, salads, Chinese food, and burritos, all flying at terminal velocity.
19 The wind had increased in velocity, and burning chunks of wood were being carried for many blocks before they fell to earth.
20 Traditional coning compensation algorithm error greatly increased while angular velocity signal was algorithm input.
以角速率信号作为算法输入时,采用以往常用的圆锥补偿算法,算法误差明显增大.
1 敏捷
ready quick alert prompt subtle swift apt witty nimble brisk deft limber facile frisky nippy light-footed lightsome volant lively faculty expedition agility aptitude haste alacrity celerity promptitude hustle vivify
3 速度
time rate speed movement clip pace bat soup lick tempo swift moto gait rapidity strength PACE V gear going tacho- zip performance pelt
4 快速
sharpish double-quick veloce mosso volitant round express fleet speedy clipping rambling brushing presto stretto speed lick fastness hell-on-wheels on the double lightning rapid swift storming long-legged headlong apace high-speed tachy- celerity expedition like magic at speed in haste smart whirlwind fast quick fast-stepping real-time wight touch-and-go quicken
6 迅速
wing-footed swift-handed fast ready quick round prompt rapid fleet swift speedy expedite winged quiver rattling expeditious raking flighty long-legged unhesitating pacey volant pacy wingy rathe lickety-split some right soon readily lightly roundly apace betimes yare swith deliverly snap speed expedition readiness diligence rapidity fastness celerity promptitude in jig time on the wings of the wind like a house on fire like fun active express sharp nimble like blazes in a hurry whirlwind feathered quickly rapidly promptly swiftly briskly expeditiously sharpish haste quickness nimbleness speediness expeditiousness like billy oh hand over fist hand over hand forward passing nippy post shortly career punctuality hasten by the hand have legs at a dash use despatch in a brace of shakes forthright zippy tantivy at the double like a dose of salts at speed fresh jet meteoric quickie presto speedily double-quick summariness