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

• You think this is another false alarm.
  你以为这又是次错误的安排。
• 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
• 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。
• 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 article expatiates the relation of alarm threshold, investigation level, probability of detecting and false alarm rate.
  阐述了核材料探查仪器的报警阈与调查水平、漏报率和误报率之间的关系。
• 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。
• 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。
• It offers low false alarm rates and nuisance alarm rates without compromising on high probability of detection levels.
  它降低了虚假警报率和干扰警报率，但不会降低高概率的探测级别。
• The Design and Realization of Radar Constant False Alarm Curcuit Based on Digital Technology
  基于数字技术的雷达恒虚警电路设计与实现
• He was the victim of a false alarm.
  他受了一场虚惊。