热量使这些粒子作随机运动。
一般估算辐照功率时常忽略目标的随机运动。
The random motion is usually neglected when evaluating the laser irradiation power.
冲量,动量的改变;火箭方程;随机运动的压力作用点。
Impulse and momentum change; rocket equation; origin of pressure from random motion.
We started with the idea you needed to appeal to souls in order to roughly explain why human bodies move, why we're animated or why we move in nonrandom ways.
一开始,我们诉诸于灵魂这样一个概念,是为了解释,为何人类的肉体能移动,为何我们有生命力,为何我们能够非随机性的运动
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