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 new constant false alarm rate ( CFAR) detector ( CMCAGO-CFAR) based on censored mean and cell averaging is presented in this paper.
  文中基于删除平均（CM）方法和单元平均（CA）方法，提出了一种新的恒虚警检测器（CMCAGO-CFAR）。
• The model-based false alarm of BIT is studied. Firstly, the information uncertainty that induces false alarm of BIT is analyzed.
  针对基于模型的BIT中的虚警问题，首先分析了引发虚警的信息不确定性；
• 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。
• 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。
• For reducing the false alarm, we adopt hierarchical alert classifier which combined misuse intrusion detection and anomaly intrusion detection.
  并且采取结合了不当行为与异常行为侦测的阶层式警报分类器来降低假警报。
• 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。
• 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。
• And if what is happening on my planet is a false alarm?
  如果我们星球上的事只是假警报呢？
• 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。