Because if it's irreversible, it's very likely that I don't know what the pressure inside the system is doing while this is happening.

因为对不可逆过程，系统内部的压强,没有明确的定义,气体不处于平衡态。

麻省理工公开课 - 热力学与动力学课程节选

So in fact what happens inside of an object-oriented system, and particularly in init Python's object-oriented system, is the following.

面向对象系统的内部,尤其是在Python的面向，对象系统的内部的过程,就是如下的，当我们调用，它会去创建一个实例。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, one of the advantages of having second messengers is this is one way that you can integrate between different receptor systems that are acting inside a cell.

使用第二信使分子的好处在于,它能够将,作用于细胞内部不同的,受体系统结合起来

耶鲁公开课 - 生物医学工程探索课程节选

Depending on what you call external and internal environment, this path that I'm tracing here, deep within your digestive system, is really directly connected to the outside world through both ends.

基于你们所谓的外环境和内环境,我在这里我所指的消化系统内部通路,它的两端确实与外界环境直接相通

耶鲁公开课 - 生物医学工程探索课程节选

There are some organ systems that are totally internal.

有一些系统完全位于身体内部

耶鲁公开课 - 生物医学工程探索课程节选