speed velocity
释义
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1. Escape velocity is simply the speed of an object that's shot out of a cannon the minimum initial speed so that the object could later escape Earth's gravity on its own.
逃逸速度就是一个物体的速度，比如说，从加农炮中射出的最小初始速度，这样这个物体以后就可以自己脱离地球的引力。
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2. First through a low velocity core, and then through a high velocity shell, where their speed is increased before they are transmitted into the surrounding seawater.
它们首先通过一个低速的核心，然后通过一个高速的外壳，在它们被输送进周围的海水之前，它们的速度提高了。
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3. Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.
简单地说，如果气体分子达到逃逸速度，它就能从一颗行星上“蒸发”。
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4. Velocity refers to the speed requirement for collecting, processing, and using the data.
速度表示收集、处理和使用数据的速度需求。
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5. In addition to the action, the command includes other parameters such as a channel number (0-15), note pitch (0-127) and the speed a key was depressed (velocity).
除了操作之外，这些命令还包括其他参数，例如频道数(0-15)，音符的音调(0 - 127)以及按键的速度(速率)。
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6. 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。
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7. There is a very big difference in physics between speed and velocity.
物理中速率和速度的概念,是泾渭分明的。
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8. And that linear velocity, which, in this case, is really your speed, is of course the circumference of the circle divided by how many seconds it takes to go around.
线速度，在这个例子里，就是速率，是这个圆环的周长，除以走一圈，需要的秒数。
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9. If the speed doesn't change, then the velocity, of course, does change because the direction changes all the time, but the speed does not.
若速率恒定，那么速度当然会变化，因为方向时刻是变化着的，但是速率没变。
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10. If you go much faster, the center of lift moves back on the wing, pushing the nose down and increasing velocity, until you soon approach the speed of sound.
如果飞机飞的太快的话，升力的重心就会从机翼转移到前半部机身上，飞机就会下降，速度会接近音速。
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11. The velocity of light is the ultimate speed limit, being part of the very structure of space and time.
作为时空结构的一部分，光速是终极速度极限。
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12. Speed is the magnitude of the velocity vector and the speed, therefore, always has a positive value.
速率是速度矢量的大小,因此速率一般，都是正值。
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13. The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity," because the object's friction with the air slows the fall.
物体在下落一定距离后由于空气阻力都会达到一个终极速度。
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14. This is the one that will have no speed, and this is the one that we're going to give a velocity.
这个没有速度，而这一个，我们给它一定速度。
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15. If you want to escape from this, you will need a speed which is the square root of two times larger than that orbital velocity.
如果想要逃离这里，你将需要一个速度，是轨道速度2倍大的，平方根。
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16. Although previous studies have found that the "group velocity" of light can travel faster than c, the "signal velocity" -the speed at which information travels -cannot.
尽管先前的研究已经证实，光的“群速度”可以超越光速c，而“信号传播速度”——光携带的信息的传播速度——不能超越光速。
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17. Well, before, the speed is zero and so the momentum is zero. And there comes the bang and one piece flies in this direction with a certain velocity, v2 prime.
在之前，速度为，动量也为0，现在砰响了一声，一片朝这个方向飞，它的速度为v2。
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18. Although previous studies have found that the "group velocity" of light can travel faster than c, the "signal velocity" - the speed at which information travels - cannot.
尽管先前的研究已经证实，光的“群速度”可以超越光速c，而“信号传播速度”——光携带的信息的传播速度——不能超越光速。
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19. So this has the highest speed, of 100 meters per second and this has a lower speed but this has the lowest velocity.
因此，100m/s是，最高的速率,而之前的那个速率则小些,然而同时，下面这个也是最小速度。
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20. So the average speed 5m/s is 4.5 meters per second, 0 but the average velocity is zero.
因此平均速率,是4。,但是平均速度是。
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21. The actual speed is the radius times angular velocity.
实际的速度就是半径乘以角速度。
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22. Velocity squared is the speed.
速度的平方为速率。
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23. Superhuman mental powers, including his extraordinary sense of hearing and blazing speed-reading, are as vital to Superman as his bullet-beating velocity and steel-bending strength.
超人的精神超能力，包括他拥有的听觉超能力和阅读超能力，就像他拥有的可以躲避子弹的速度和折断钢铁的力量一样至关重要。
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24. So, even if the speed is constant, that means, even if a length of the velocity vector stays the same, the velocity vector can still rotate.
因此即使速率不变，也就是说速度矢量的的大小不变，但它的方向可以做旋转。
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25. A remarkably regal Graham Chapman, probably thinking about the air speed velocity of a swallow.
著名皇室格林汉姆·查普曼，可能正在考虑一只燕子飞行的空气流速。
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26. The speed of light is widely regarded as the Universe's ultimate velocity limit.
光速被广泛认为是宇宙中速度的极限。
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27. Now, then we have the speed, which we can also think of as a linear velocity.
然后速率，我们也可以，看作是线速度。
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28. But money velocity, or the speed with which cash is spent, is declining.
但货币流通速度正在下滑。
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29. The gravitational field is so strong that the escape velocity near it exceeds the speed of light.
重力场是如此的强大以致于靠近它的逃逸速度超过光速。
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30. Therefore, cutting the purity of oxygen, volume, velocity, and oxygen flow shape on the gas cutting quality and cutting speed has important implications.
因此，切割氧的纯度、流量、流速和氧流形状对气割质量和切割速度有重要的影响。
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speed velocity
