false alarm

英 [ˌfɔːls əˈlɑːm]

美 [ˌfɔːls əˈlɑːrm]

n.  假警报; 虚惊

计算机

牛津词典

noun

• 假警报；虚惊
  a warning about a danger that does not happen; a belief that sth bad is going to happen, when it is not
  1. The fire service was called out but it was a false alarm.
     消防人员接到报警后出动，但这是假报火警。

柯林斯词典

• N-COUNT 假警报;虚惊
  When you think something dangerous is about to happen, but then discover that you were mistaken, you can say that it was afalse alarm.
  1. ..a bomb threat that turned out to be a false alarm.
     最终证实是虚惊一场的爆炸恐吓

英英释义

noun

• a warning that is given about something that fails to occur

双语例句

• The rumours of a petrol shortage turned out to be a false alarm.
  汽油短缺的谣传原来是一场虚惊。
• The alarm system went wrong and created a false alarm.
  报警系统失灵，引起一场虚惊。
• The multielement interrelated detection technique is of maximum detection sensitivity and minimum false alarm rate by the correlation function.
  多元相关探测技术在具有很好的探测灵敏度的同时，兼顾保证了极低的虚警率。
• The new family features five integrated technologies that yield high capture rates and low false alarm rates.
  新的系列有五个综合技术特征，仍然是高捕捉率和低误报率。
• The sky went very dark and we thought it was going to rain but it was a false alarm.
  天空变得黑沉沉的，我们以为要下雨了，但结果只是虚惊一场。
• Simulation results show the mechanism can detect the DNS attack, it makes good compromise between the detection rate and the false alarm rate.
  仿真结果表明，该机制能够有效检测DNS缓存攻击，并实现检测准确率和误警率间的平衡。
• I already told you it was a false alarm.
  我已经告诉你是误警了。
• All the air raid warnings, without exception, had been false alarm.
  所有空袭预告毫无例外都是虚假警报。
• You think this is another false alarm.
  你以为这又是次错误的安排。
• A scan detection platform constructed by unused IP addresses will effectively improve detection accuracy and reduce false alarm.
  利用网络中未使用IP地址构建扫描检测平台能够有效提高检测准确率，降低虚警率。