Acceleration and velocity are both vectors.
加速度和速度都是矢量。
Jaguars can move with an astonishing velocity.
美洲豹跑起来速度惊人。
The temperature field and velocity field inside springhouse was numerically simulated.
对冷藏室内的温度场和速度场进行了数值模拟。
Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.
一旦你开始让巨石滚动，巨石就会产生动量，这是由其质量和速度决定的。
The water absorption velocity of fluff slurry determines the performance of sanitary towel series products directly.
绒毛浆的吸水速度直接决定了卫生巾系列产品的性能。
To criticize it for such failure is roughly comparable to criticizing a thermometer for not measuring wind velocity.
批评它的失败，就犹如批评温度计不测风速一样。
Responding to changes in the CF echo's frequency, bats of some species correct in flight for the direction and velocity of their moving prey.
有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。
They are the radius of the orbit, the energy of the system and the velocity of the electron, and I am just going to present you the solutions.
它们是轨道的半径，系统的能量以及电子的速度，我接下来给你们展示解法。
Wind velocity also increases with altitude and may cause serious stress for trees, as is made evident by the deformed shapes at high altitudes.
风速也随着海拔高度的增加而增加，可能给树木带来严重的压力，这从高海拔地区的变形就可以看出来。
So we are burning up an enormous amount of fuel at every launch just to get the rocket up to what's known as escape velocity.
所以每一次发射我们都要耗费大量的燃料来让火箭达到所谓的“逃逸速度”。
On constant volume hoods, this raises the capture velocity.
在定容罩上，这会提高捕获速度。
OK, so that's the velocity vector.
好，这就是速度矢量。
You see then the critical velocity.
下面是临界速度。
What is the velocity of this particle?
那么粒子的速度又是多少？
Defect arrival rates or testing velocity.
缺陷出现率或者测试速度。
And so, that's called the velocity vector.
因此我们叫它速度矢量。
Another example comes from velocity fields.
另一个例子——速度场。
So that's the meaning of the critical velocity.
这就是临界速度的意义所在。
Measures the rotation part of a velocity field.
它度量了流速场的旋转。
The actual speed is the radius times angular velocity.
实际的速度就是半径乘以角速度。
So that's the definition of v, instantaneous velocity.
这些就是v的定义，也就是瞬时速度。
So this is a linear velocity, this is an angular velocity.
因此这是线速度，那个是角速度。
Techniques for measuring and interpreting team velocity.
评测和解释团队进度的技巧。
The speed is not changing, but the velocity vector is changing.
速率保持不变，但速度矢量会发生变化。
A week later, a car ran towards Irene's house at a fast velocity.
一星期后，一辆车以飞快的速度开往艾琳的家。
Kent Beck observed another benefit of knowing the team's velocity.
KentBeck发现了另外一个了解团队速度的好处。
What is the horizontal velocity of the golf ball when it takes off?
高尔夫球发射时，其水平速度是多少？
So, the velocity vector is going to be always tangent to the curve.
速度向量总是与曲线相切的。
And angular acceleration is the derivative of angular velocity.
角加速度等于，角速度的导数。
And angular acceleration is the derivative of angular velocity.
角加速度等于，角速度的导数。
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