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”。

Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.

youdao

冲击波形成了一个由压缩气体分子构成的圆锥体，它朝四面八方向外和向后移动，一直延伸到地面。

The shock wave forms a cone of pressurized air molecules which move outward and rearward in all directions and extend to the ground.

youdao

并没有这样的气体分子，它们是由成千上万的原子组成。

You don't have gas molecules consisting of thousands of atoms.

youdao

I'm going to write it like this three moles of hydrogen which is a gas one bar 100 degrees Celsius.

我会写成这样：,三摩尔氢分子，气体,1巴，100摄氏度。

麻省理工公开课 - 热力学与动力学课程节选

The molar volume is being changed a little bit trying to make things collide with each other, they can't occupy the same volume.

摩尔体积发生了很小的改变,如果你试图使气体分子间相互碰撞，他们不能占据同一个位置。

麻省理工公开课 - 热力学与动力学课程节选

If we have too much gas in here, in other words, if the gas is at too high a pressure, the collisions with the gas molecules will consume the energy of the electrons and, again, we will see nothing.

假设这里有过多气体，换句话说，如果气体处在一个高压状态下，气体分子间的碰撞将会消耗,电子的能量，同样，什么也没有。

麻省理工公开课 - 固态化学导论课程节选