false alarm

• n. 虚警(假警报)

英英释义

Noun:

1. a warning that is given about something that fails to occur

例句

用作名词 (n.)

1. So the false alarm signals had to be filtered in the stage of holding down background clutters.
   因此，必须设法在复杂背景抑制段将虚警探测讯息滤除掉。
2. The experiments show that false positives are decreased and the detection rate is improved in this system.
   分析比对实验表明，该系统降低了入侵检测系统的虚警率，提高了检测率。