牛顿定律并不适合于任何情况。
牛顿被苹果砸了一下，从此有了牛顿定律。
因为根据牛顿定律，每个动作都有反作用力。
Because according to Newton, for every action there's an opposite reaction.
首先，它是决定性的，因为牛顿定律是决定性的。
First, it is deterministic because Newton's laws are deterministic.
在这一节中，我们暂时离开牛顿定律来讨论一下单位问题。
In this section we depart briefly from the subject of Newton's laws to discuss the question of units.
但是当你观察比原子更小层面的微观世界，你会发现牛顿定律不再适用了。
But then it was discovered that actually when you look at motion at really small levels - beyond the level of the atoms - Newton's laws no longer apply.
FCI是一组有关牛顿定律基本概念的选择题，由30个小题组成。
The FCI is a collection of 30 multiple-choice questions on the basic concepts of Newton's laws.
给一个用这个可以作证明的例子，可以去证明牛顿定律，也就是。。。
OK, so just to give you an example of what you can prove it this way, you can prove Newton's theorem, which says the following thing.
先学规则，即定理，运行的次序，牛顿定律-然后在章节的最后列一张问题列表。
Learn the rules first - the theorems, the order of operations, Newton's laws - then make a run at the problem list at the end of the chapter.
经过这样的分析会发现，牛顿定律在以遥远星系为不动的参考系中有效。
Once this analysis is done, it is clear that (for non-relativistic speeds, at least!) Newton's laws work in a frame in which the distant galaxies do not rotate.
倘若我们不知道怎样应用牛顿定律，这些定律就会是一些没有意义的方程。
Newton's laws are meaningless equations until we know how to apply them.
海王星的发现是促使之间的立场差距甚远牛顿定律和天王星的实际位置预测。
Neptune's discovery was prompted by discrepancies between the position predicted by Newton's laws and the real position of Uranus.
古典力学是以牛顿定律为基础，研究运动速度远小于光速的宏观物体的运动；
Newton law is the basis of classical mechanics, the study of movement speed far less than the speed of light macro object;
这话是我大4时看见的，过了2年后，我发现这条伟大真理完全可以和牛顿定律媲美。
This statement was seen when I was a senior student, and two years later, I find its infallibility even can match Newton’s law.
我们在学校所教的“显性和隐形基因严格遵循孟德尔法则”的模型已被证明是比牛顿定律更简单的对事实的描述。
The models we were taught in school about "dominant" and "recessive" genes steering a strictly Mendelian process have turned out to be an even greater simplification of reality than Newton's laws.
伤心？你接下来就会开心的。哭泣？你接下来就会笑了。因为根据牛顿定律，每个行动都有反作用力。
Sad? You will later be happy. Crying? You will later be smiling. Because according to Newton, for every action there's an opposite reaction.
悲伤？你以后总会开心起来。哭泣？你之后总会微笑出来。因为根据牛顿定律，每个动作都有反作用力。
Sad? You'll later be happy. Cry? You'll later smile. Because according to Newton, for every action there's an opposite reaction.
巴斯滕在马德里出神入化的表演倾倒众生，他不可思议地冲破牛顿定律，鱼跃冲顶打进一球。至今令人为之神夺。
Watching mesmerized the Divine Swan defy the laws of gravity of Newton in Madrid and score a divingheader from the ground. Breathe-taking stuff.
例如，假定我们知道某一个时刻的太阳和行星的位置和速度，则可用牛顿定律计算出在任何其他时刻的太阳系的状态。
For example, if we knew the positions and speeds of the sun and the planets at one time, then we could use Newton's laws to calculate the state of the Solar System at any other time.
接着开普勒证明了这个椭圆轨道也能很有效解释其他行星的运行轨迹。然后他提出了行星运动定律，牛顿定律就是以此为理论基础的。
Kepler went on to show that an elliptical orbit is sufficient to explain the movement of the other planets and to devise the laws of planetary motion that Newton built on.
接着开普勒证明了这个椭圆轨道也能很有效解释其他行星的运行轨迹。然后他提出了行星运动定律，牛顿定律就是以此为理论基础的。
Kepler went on to show that an elliptical orbit is sufficient to explain the movement of the other planets and to devise the laws of planetary motion that Newton built on.
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