而各个相对孤立的系统给用户的使用带来了不便，同时也影响了用户的工作效率。

But those relative isolated systems have brought too much trouble which place down the working efficiency when users use them.

youdao

严格来说，“熵”证明了在一个封闭、孤立的系统中，一切物质会通过不可逆的变化会造成能量的质量衰减；

Strictly considered, it tells that in a closed, isolated system, everything goes through an irreversible alteration causing a deterioration of the quality of energy.

youdao

如果系统是孤立的。

Now if you system is isolated.

youdao

When we have an isolated system, the criterion that determineswhether something happens spontaneously is the entropy has to increase.

对于孤立系统,决定一个过程是否自发发生的判据为：,熵必须增加。

麻省理工公开课 - 热力学与动力学课程节选

We don't say anything about implicitly here, we're talking about a closed system, so there's no mass leaving the system.

我们不讨论,这是隐含条件，因为我们讨论的是孤立系统，因此系统没有物质流失。

麻省理工公开课 - 热力学与动力学课程节选

Well, dq is equal to zero and dw is equal to zero dq=0 dw=0 because it's isolated.

隔离的孤立系统,这时。

麻省理工公开课 - 热力学与动力学课程节选