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

I take V1 to V2 first, keeping the pressure constant at p1, then I take p1 to p2 keeping the volume constant V2 at V2. Let's call this path 1.

容易计算的路径，第一条路径，是首先保持压强不变,体积从V1压缩到。

麻省理工公开课 - 热力学与动力学课程节选

So path number 1 went from i, f let's call this path up here. went to f, and this is how much energy change there was.

从i出发，经过路径1到达，能量的变化是这么多。

麻省理工公开课 - 热力学与动力学课程节选