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
- 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。 - 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 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。 - 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 - Simulation results show the mechanism can detect the DNS attack, it makes good compromise between the detection rate and the false alarm rate.
仿真结果表明,该机制能够有效检测DNS缓存攻击,并实现检测准确率和误警率间的平衡。 - Sorry for the false alarm but it was for a good cause.
我对假警报表示抱歉,不过这是为了做好事。 - 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。 - 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 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。 - 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。