每个这样的系统都有自己的平衡方法，但一般说来压缩阶段在时间和工作上都耗费颇多。

Each of these systems has its trade-offs, but generally the compaction phase is an expensive one in terms of time and effort.

youdao

任何次系统，例如经济，必然会在某个时刻停止生长，达到动态平衡，就好像静止一般。

Any subsystem such as the economy must at some point cease growing and adapt itself to a dynamic equilibrium something like a steady state.

youdao

很不幸地，一般民众却不了解鲨鱼是海洋中必需的生物，因为鲨鱼能维持水中生态系统的平衡，不过，牠们现在却面临绝种的命运。

Unfortunately, the general population fails to see that sharks are a vital component of our oceans because they maintain balance in our underwater ecosystem and, now they are facing extinction.

youdao

In other words, we need criteria for equilibrium under more general conditions than the ones that we've dealt with so far, than the one set of conditions that we've dealt with so far, which is isolated system.

换句话说,相比我们目前为止,考虑和处理的问题，我们需要更一般条件下平衡的判据,我们目前，只考虑了孤立系统。

麻省理工公开课 - 热力学与动力学课程节选