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Impulse and momentum change; rocket equation; origin of pressure from random motion. 冲量,动量的改变;火箭方程;随机运动的压力作用点。
We shall see next how two similar concepts, those of impulse and momentum, also arise from these laws. 下面我们将看到两个相似的概念，即冲量和动量，也是从这些定律引伸出来的。
Further topics include kinematics, particle dynamics, motion relative to accelerated reference frames, work and energy, impulse and momentum, systems of particles and rigid body dynamics. 更进一步探讨运动学，质点动力学，于加速坐标系上之运动行为、功、能量、冲量、动量和质点系统与刚体动力学。
It was a day for impulse and truancy. 这是个适于冲动或偷懒的日子。
We exploit the energy and momentum conservation laws in this way. 我们就是这样利用能量和动量守恒定律的。
The position and momentum of the particle are observables. 粒子的位置和动量是可见的。
Arsenal has lacked that drive and momentum for two years now. 阿森纳缺乏这种驱动力和冲劲已经2年了。
All human activity springs from two sources: impulse and desire. 人类的一切活动都发生于两个来源：冲动与愿望。
We exploit the energy and momentum conservation laws in this way . 我们就是这样利用能量和动量守恒定律的。
A large deodar cedar big lawn, so concise and momentum ". 大草坪上要有大雪松，这样简洁而有气势”等内容。
Here is an example of the usefulness of the concepts of angular impulse and angular momentum. 这有一个例子，可以说明角冲量和角动量概念的用途。
We are taking the task forward, with even greater confidence and momentum. 我们怀着更强的信心和更大的冲劲，正努力推进任务。
In a crash, momentum changes abruptly but not instantaneously. 在撞击过程中，动量的变化是突然的，但非瞬时的。
They are impulsive and dangerous to stop. 他们冲动而且难以阻止。
Nora tended to be impulsive and sometimes reckless. 劳拉做事冲动，有时还很莽撞。
The fluctuations of its displacement and momentum at zero-point are also given. 方法的可靠性及阻尼谐振子的坐标、动量的零点涨落亦得到讨论。
Characterized by or subject to whim;impulsive and unpredictable. 反复无常的，多变的具有奇异念头的特征的或易产生这类念头的；易冲动和不可预料的
Characterized by or subject to whim; impulsive and unpredictable. 反复无常的，多变的具有奇异念头的特征的或易产生这类念头的；易冲动和不可预料的
The relativistic mechanics in chapter 21 is circumscribed with primary emphasis on the concepts of energy and momentum. 第二十一章的相对论性力学主要限于强调能量和动量的概念。
When such impulse and desires are vigorous, they bring with them, of themselves, what is needed to make a good life. 当这样的冲动或愿望具有活力的时候，它们自然会带来形成一个良好生活所必须的东西。