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。
• This has been a false alarm.
  一切都是虚惊一场。
• 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。
• The experimental results show that the model has high detection rate, and which can deduce the false alarm rate effectively.
  对模型和算法进行多种典型攻击测试实验，结果表明模型具有较高的检测率，并能有效降低误警率。
• In order to guarantee the false alarm probability of CFAR detector, we determine practical threshold coefficients by using simulations.
  本文中我们通过仿真的方法确定CFAR中的实际门限系数，研究有限的参考单元数对虚警性能的影响。
• 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。
• 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。
• 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 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。