The main spring of the alarm clock is broken.

The alarm clock was wound.

闹钟上过发条了.

I set my alarm clock for 4.30.

我把闹钟定在4点半。

If he set his alarm clock for midnight, it would wake the whole house.

如果他把闹钟设在午夜响，那会把全家人都吵醒的。

He tried to muffle the alarm clock by putting it under his pillow.

他把闹钟塞在枕头底下，想减低声音。

an alarm clock with a luminous dial

夜光闹钟

I set the alarm clock for 7 o'clock.

我把闹钟定在7点钟闹响。

The present invention discloses an independent short message fire alarm system.

本发明公开了一种独立式短消息火灾报警系统.

FAS ( Fire-fighting Automation System ), includes automatic fire alarm system and sprinkler system.

FAS消防自动化系统, 自动火灾报警、自动喷淋系统.

The necessity of installing the residual current fire alarm system was analyzed.

分析了设置剩余电流火灾报警系统的必要性.

This paper designs a completely new alarm system for MDF.

设计了一种总配线架告警系统.

Treading on any part of this floor activates the alarm system.

踩地板的任何一部份都会启动警铃.

But alarm system still able to send information out.

但系统仍然能将报警信息发送出去.

Mr. Green has installed a burglar-alarm system in his home.

格林先生家装了防盗报警系统.

Security technology off the production line: Intercom system and alarm system.

安全技术下线: 对讲系统,报警系统.

Does the facility have an intrusion detection or alarm system?

工厂是否有非法进入监测和报警系统?

The alarm system is also included in the above panels?

报警系统包括在上面的面板中 吗 ?

The alarm system has the over-speed , over-temp, imbalance and belt-broken alarm function.

具有过速 、 过温 、 失衡等报警及保护功能.

Look for security companies that offers burglar alarm system kit installation.

?寻找保安公司提供防盗报警系统套件安装.

To minimize the risk of burglary, install a good alarm system.

安装可靠的报警设备以减低被盗的风险.

The intruder smashed a window to get in and then neutralized the alarm system.

闯入者打碎了一扇窗户进来，然后破坏了警报系统。