The emergency system has been disconnected.

自动应急系统已被断开。

The navy said the submarine might have lost power in a dive, disabling emergency systems.

海军表示，这艘潜艇可能在下潜时失去动力，导致应急系统瘫痪。

We're also going to talk about the 9-1-1 system – the emergency system in the United States, what it is, and how it got started.

我们还将讨论 9-1-1 系统——美国的紧急系统，它是什么，以及它是如何开始的。

It's a telephone conversation between an " emergency operator" (somebody who answers the phone calls for the government's police and fire emergency system) and someone who has an emergency.

这是“紧急接线员” （接听政府警察和消防应急系统电话的人）和遇到紧急情况的人之间的电话交谈。