The engine delivers instant acceleration whatever the revs.
不论转速如何，发动机都可以立即加速。
That change is the rapid acceleration of urbanization.
这种变化就是城市化的急剧加速。
We have come to expect an acceleration of music during car chases and creaky doors in horror films.
我们已经开始期待在汽车追逐时音乐的加速和恐怖电影中嘎吱作响的门。
Do not confuse ever the tangential acceleration, which is along the circumference, with centripetal acceleration.
不要把沿圆周的切向加速度与向心加速度混淆。
There is now an acceleration in the rates at which they are becoming both cleverer and cheaper: an explosive combination.
现在，它们正在加速变得更聪明、更便宜：这是一个爆炸性的组合。
Species extinction, deforestation, damming of rivers, occurrence of floods, the depletion of ozone, the degradation of ocean systems and many other areas are all experiencing acceleration.
物种灭绝、森林砍伐、河流筑坝、洪水、臭氧层损耗、海洋系统恶化和许多其他变化都在加速发生。
It's a very modest acceleration.
一个很小的加速度。
That is the instantaneous acceleration.
这也就是瞬时加速度。
We call it "centripetal acceleration."
我们称之为“向心加速度
What does that mean for the acceleration?
就加速度而言这意味着什么呢？
GPU acceleration and hardware compositing.
GPU加速和硬件合成。
We will discuss velocities and acceleration.
这节课主要讨论速度和加速度。
It means "hardware acceleration" for Web video.
对在线视频进行硬件加速。
That is 40 times the acceleration due to gravity.
大致是重力加速度的40倍。
And that is 2,000 times the gravitational acceleration.
这也就是重力加速度的2000倍。
This boosts acceleration and takes the top speed to 200kph.
这将提升加速性能并可将极速推上200kph。
So, that means the acceleration is parallel to the position.
这意味着加速度与位矢平行。
Now let's talk about the acceleration aspect of optimization.
现在，让我们来谈谈优化的加速方面。
And we can calculate now what the centripetal acceleration is.
这样我们，就能求出向心加速度。
And angular acceleration is the derivative of angular velocity.
角加速度等于，角速度的导数。
If the acceleration goes down, the period of oscillation goes up.
如果加速度减小，振荡周期变大。
100 times closer has a 10,000 times larger centripetal acceleration.
距离近一百倍，而向心加速度大一万倍。
Notice that the acceleration, the centripetal acceleration is linear in r.
在此注意，向心加速度与r是成正比的。
Last time we discussed that an acceleration is caused by a push or by a pull.
我们在上节课讲了推力和拉力，可产生加速度。
A user stops in, though, to report that it's "too slow" and needs acceleration.
但是某个用户使用了一下，然后报告说它“太慢了”，需要加速。
For supported CARDS, there's the VIDIX drivers for hardware video acceleration.
对于支持的显卡，它使用VIDIX驱动来进行硬件视频加速。
With acceleration turned on, the rate was increased to a range of 29 to 35 FPS.
当打开加速时，该比率提升到了每秒29到35帧。
And, we've also learned about acceleration, which is the derivative of velocity.
我们还学过加速度，也就是速度向量的导数。
And, we've also learned about acceleration, which is the derivative of velocity.
我们还学过加速度，也就是速度向量的导数。
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