aircraft warning

• 防空警报； 空袭警报

aircraft warning的用法和样例：

例句

1. An air raid warning stridently interrupted his thoughts.
   刺耳的空袭警报声打断了他的沉思。
2. There had been air raid warning, and the train slowed to thirty miles an hour.
   由于空袭警报已拉响，车速减到每小时三十英里。