起搏器就是基于无线系统维持稳定心跳，超声波与X -光都用到了无线技术。

Pacemakers rely on a basic wireless system to set a stable heartbeat. Ultrasound and X-ray technologies are wireless.

youdao

但在很多情况下，这些系统维持了许多年——也就是，这些是对企业很重要的“遗留系统”，但它们经常是很难被理解和维护的。

But in many cases, these systems have been maintained for many years — i.e., these are "legacy systems" that are important for the enterprise, but they are often difficult to understand and maintain.

youdao

在这种情况下，可以考虑减少连接超时值，这些值控制操作系统维持连接多长时间；这可以使用Solaris的ndd或aix的no来设置。

In this case, you want to reduce the timeouts that control how long the operating system holds the connections, such as with NDD for Solaris or no for AIX.

youdao

Normally, we do these things to keep an equilibrium among the different systems of the unconscious, but sometimes it doesn't work.

一般来说，我们会运用这些机制,去维持无意识系统的平衡，但有时防御机制也会不起作用。

耶鲁公开课 - 心理学导论课程节选

The renal system has an equally important function in that way, in maintaining your water balance.

泌尿系统也同样十分重要,它能够维持体内的水平衡

耶鲁公开课 - 生物医学工程探索课程节选

So suppose,gruesome as it was,this weekend I'm in some horrible accident and my torso gets destroyed and they keep my brain on life support, oxygenating it just long enough to do some radical surgery into some spare torsos.

来做个可怕的假设，我在周末惨遭事故,肉体完全损坏，只剩大脑靠系统维持生命，持续补氧到能被高超手术植入另外的身体。

耶鲁公开课 - 死亡课程节选