报警器

• Can you turn off the siren ? - what
  -你能关掉报警器么？ -什么？
• The fire - alarm is giving warning of fire
  报警器正发出火警警报。
• Specification for simple smoke alarms and alarm metering devices
  简易烟雾报警器与报警测量器规范
• - can you turn off the siren ? - what
  -你能关掉报警器么？ -什么？
• And i also have a personal attack alarm . .
  我还有一个私人报警器
• Inner structure of static earthing alarm
  固定式静电接地报警器：
• Application of a deposite - level alarm in xiqu washery
  一种自行设计的仓位报警器在西曲选煤厂的应用
• Why doesn ' t he just get a car aiarm
  为什么他不能装个报警器呢
• And i also have a personal attack alarm
  我还有一个私人报警器
• Application of pic16c54 single - chip microcomputer to vehicle bug
  54单片机在汽车防盗报警器中的应用