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

• 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。
• 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。
• 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。
• 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。
• A new multi-threshold frequency domain constant false alarm rate detection algorithm for radar fuse was presented.
  提出了一种新的雷达引信多门限频域恒虚警率检测算法。
• The running results have testified that the system is easily realized with low false alarm rate and higher value.
  运行结果证实，误报率低，易于实现，具有较高的应用价值。
• This design can improve the reliability and timeliness of fire alarm system, reduce the false alarm rate and improve the level of intelligent system.
  这一设计可提高火灾报警系统的可靠性与及时性，减少误报率，提高系统的智能化程度。
• I already told you it was a false alarm.
  我已经告诉你是误警了。
• It is the core problem in laser detection system keeping low false alarm probability while ensure the detection distance.
  如何在保证激光探测距离的基础上保持低的探测虚警，一直是激光探测系统的核心问题。
• Sorry for the false alarm but it was for a good cause.
  我对假警报表示抱歉，不过这是为了做好事。