Patent circuit design with Intelligent automatic breakdown detection and quick emergency switch times.

专利模块电路设计，智能故障自动检测，应急转换时间快。

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Step 5: Look for an emergency exit or emergency door release switch.

寻找紧急出口或紧急开门按钮。

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Dedicated lanes give buses an uncongested path, and traffic-signal priority gives buses the power, once reserved for emergency vehicles, to switch signals from red to green as they approach.

FORBES: Busting Bus Bunching With Traffic Signals

Maybe my AC is working too hard and I need to switch if off before an emergency occurs.

FORBES: When the lights went out, my light went on

If digital communications are disrupted, the site can switch to analogue technology with assistance from the Radio Amateurs' Emergency Network.

BBC: Bunker mentality: The Cold War bunkers still in use