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
- 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。 - 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。 - 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。 - 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 - 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 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。 - 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。 - This has been a false alarm.
一切都是虚惊一场。 - This design can improve the reliability and timeliness of fire alarm system, reduce the false alarm rate and improve the level of intelligent system.
这一设计可提高火灾报警系统的可靠性与及时性，减少误报率，提高系统的智能化程度。