false alarm
英 [ˌfɔːls əˈlɑːm]
美 [ˌfɔːls əˈlɑːrm]
n. 假警报; 虚惊
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- 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。
- The fire service was called out but it was a false alarm.
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.- ..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
- ..a bomb threat that turned out to be a false alarm.
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。 - 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。 - 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。 - 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。 - 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。 - 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。 - 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 alarm system went wrong and created a false alarm.
报警系统失灵，引起一场虚惊。 - 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。 - 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