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 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。
• She thought she was pregnant, but it turned out to be a false alarm.
  她以为她怀孕了，但结果是虚惊一场。
• 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。
• You think this is another false alarm.
  你以为这又是次错误的安排。
• Then the paper makes a discussion on how to decrease the probability of false alarm and probability of false rejection.
  论文从水印检测过程中可能发生的两类错误入手，讨论了降低检测虚警概率和漏报概率的一般方法。
• 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。
• The alarm system went wrong and created a false alarm.
  报警系统失灵，引起一场虚惊。
• 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。
• 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。
• He was the victim of a false alarm.
  他受了一场虚惊。