它们还必须不停地游动以避免下沉，因为大多数鱼基本上或完全失去了鱼鳔，这个充满气体的囊帮助大多数其他鱼保持浮力。

They must also keep swimming to keep from sinking, since most have largely or completely lost the swim bladder, the gas-filled sac that helps most other fish remain buoyant.

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右边是充满气体的肺组织。

This contrasts with the aerated lung on the right of this photomicrograph.

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在氙气灯内，电流通过一个充满气体的显像管，弯曲成弧形。

This is commonly a xenon lamp, in which electricity is arced through a tube filled with the gas.

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Let's build this up. Let's see where this comes from, where these parameters a and b comes from. So, the first thing we're going to do is we're going to take our gas in our box, let's build a box full of gases here.

参数a和b有什么含义,首先，假设研究的气体,都在一个容器里,容器里充满了气体,这些是气体分子。

麻省理工公开课 - 热力学与动力学课程节选