独木船的加速度方向如何？
在太空中，计算机被用来控制宇宙飞船的速度和方向。
In space, computers have been used to control the speed and direction of a spaceship.
这些节点可以从地面的振动测量出车辆的速度和方向。
They were able to measure the speed and direction of vehicles from ground vibrations.
尽管方向是明确的，但速度却不明确。
这个速度要么,在这个方向,要么在那个方向。
The velocity could either be in this direction or it could be in that direction.
在哪个方向，碰后速度为多少？
In what direction and what will be the speed after the collision?
如果有一只鸟转变了方向或改变的速度，那么其他所有的鸟都跟了一起变。
If any one bird turned and changed speed, so would all the others.
另一片往这个方向飞，质量为m1，速度为v1。
And another piece flies off in this direction with mass m1, with velocity v1 prime.
我们已经推导出了加速度,是这个方向。
We know that the acceleration is in this direction. We derived that.
在这个方向需要有一个加速度，故重量会增加。
There will be weight increase so there is here an acceleration upwards.
在飞荡时，玩家可以控制速度和方向，以及你想何时或怎样结束这个动作。
In the swing, you have control over the speed and direction - and when and how you want to let go.
这一也十分重要-，加速度与力方向相同。
That's also important — the acceleration is in the direction of the force.
这样，你就可以控制方向和速度。
对于x，y，或z三个方向的速度。
我们银河系相对于几个邻近星系的的位置、速度和方向也很重要。
Our galaxy's position, speed and direction relative to several neighboring galaxies is also important.
如果开车速度很快，很有可能看不到方向标志。
在y方向几乎,没有加速度。
但请看加速度，却是+2，方向是这样的。
But there is the acceleration which is plus two in this direction.
那y方向上,0时刻的加速度是多少？
速度：一个物体运动的方向和速率。或者是在某一位置的变速率。
Velocity: the speed and direction of an object, or its rate of change in position.
在每个方向有不同速度使它得到了不对称的招牌。
The different speed for each direction gives it the asymmetric label.
脉冲作用方向对脉冲作用点的速度波影响很大。
It is shown that impulse direction has a great effect on velocity wave.
增长告诉我们经济运行的速度，而不是方向。
Growth tells us about the speed of the economic 'vehicle' not its direction.
因为位移有方向，所以速度也有方向。
Since displacement has direction, velocity also has direction.
时间之箭是关于方向的，而不是关于速度的。
The arrow of time is about a direction, but it's not about a speed.
宇航员用电脑控制宇宙飞船的速度和方向，甚至控制其内部的温度。
Astronauts use computers to control the speed and direction of their spaceships, even the temperature.
无速度传感器技术的研究是一个很重要的方向。
The study on speed sensorless is an important research field.
在风的情况(场合)下，观测不但(应)包括方向，而且还(应)包括速度。
In the case of wind, observation involves both speed as well as direction.
在风的情况(场合)下，观测不但(应)包括方向，而且还(应)包括速度。
In the case of wind, observation involves both speed as well as direction.
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