box alarm

用法例句

They raise alarm for help.

他们发出警报求助。

sound a note of alarm/danger/warning

发出警报[危险信号/警告信号]

warning lead time

从发出警报到真正发生事件的时间

Alarm calls were placed to central district police and fire units first.

首先向市中心区警察当局和消防队发出警报。

I raised the alarm as soon as I saw the smoke.

我一看见冒烟就发出警报。

The doorkeeper gave the alarm as soon as he saw the smoke.

守门人一看见冒烟就发出警报。

alarm and trip mechanism

警报发出和解除机构

The computer triggers a "conflict alert."

计算机会发出“碰撞警报。”

A bell used to sound an alarm.

警钟用于发出这种警报的钟

Smoke sensors warned us of the fire.

烟雾探测器已向我们发出火警警报.

a loud warning signal produced by a burglar alarm.

夜盗警钟发出的响亮的警报信号。

Once a thief gets into the garage, the alarm will ring.

只要有贼进入仓库, 警报器就会发出报警声。

The radio gave a warning of bad weather.

广播电台发出了坏天气的警报。

Together we had done our best to sound the alarm.

我们曾一同竭尽全力发出过警报。

This alarm immobilizes the car.

这种警报一发出, 汽车就停止不动了.

The Weather Bureau issued a typhoon warning on the ocean.

气象局今阿日发出海顶耶风颱警报。

a warning signal that is a loud wailing sound.

发出响亮尖利声音的警报信号。

It may move about nervously and sound alarm calls.

它会乱跳飞鸣，发出报警叫声。