难检字字典在线查询

汉语拼音：jǐng bào qì

1.发放警报信号的器具。用于发放预报﹑警报和解除警报的信号。

1. 发放警报信号的器具。用于发放预报、警报和解除警报的信号。

• The alarms produce a wide range of frequencies that enable the brain to determine where the sound is coming from.

  这种警报器发出的频率范围广，使人脑可以判断出声音的来源。

• or of all those who stop work as soon as soon as the siren goes, no matter how much waste and damage is caused.

  或所有那些停止工作，他们很快就会尽快警报器走，不管多少浪费和造成损坏的。

• A company in Leeds could change all that with directional sound alarms capable of guiding you to the exit.

  英国利兹市的一家公司发明的一种可指方向的警报器可能会把你引向出口。

• This exploits the Doppler effect familiar when a siren changes pitch as the fire engine on which it is mounted speeds past you.

  这种方式利用的是多普勒效应原理——当消防车从你身旁一闪而过时，上面装着的警报器的音高就会发生改变，这点大家很熟悉。

• He thought it was a routine call as shop burglar alarms often sounded first thing in the morning when staff opened stores.

  他认为这是寻常的警报声，因为店铺防盗警报器经常会在工作人员打开店门时响起。

• The siren was a signal for everyone to leave the building.

  警报器一响，就是要所有人离开大楼。

• Now we rely on silent alarms and the hidden cameras , and, of course , some of money in each cage is marked .

  现在我们靠无声警报器和暗藏照相机。当然了，还有就是每个柜里的一些钱作了记号。

• An electrical, electronic, or mechanical device that serves to warn of danger by means of a sound or signal.

  警报器，警钟一种电力的、电子的或机械的装置，通过发出声音或信号来表示对危险的警告。

• They is about to leave when they hear a siren screaming behind them.

  他们正要离开时，突然听到警报器在背後尖叫起来。