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 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。
• 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 results of analysis and the simulation showed that the new method can provide higher detecting probability and lower false alarm rate.
  最后，对该方法的检测流程和检测性能进行分析，仿真结果表明，该方法能够获得更高的检测概率以及更低的虚警概率。
• The new family features five integrated technologies that yield high capture rates and low false alarm rates.
  新的系列有五个综合技术特征，仍然是高捕捉率和低误报率。
• 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。
• You think this is another false alarm.
  你以为这又是次错误的安排。
• 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。
• 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。
• I already told you it was a false alarm.
  我已经告诉你是误警了。
• 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。