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
- He was the victim of a false alarm.
他受了一场虚惊。 - 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。 - 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。 - 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 - 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。 - 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。 - This has been a false alarm.
一切都是虚惊一场。 - 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 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 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。