大家都搜：
两次信号
1、signal wire───[通信]信号线
2、bitten twice───被咬了两次
3、signal twice───发出两次信号
4、radio signal───无线电讯号；无线电信号
5、thinking twice───再三考虑；重新考虑
6、twice daily───[医]每天两次；每日两次
7、signal───adj.显著的；作为信号的；n.(Signal)人名；(瑞典)西格纳尔；vt.标志；用信号通知；表示；n.信号；暗号；导火线；vi.发信号
8、twice wiki───两次wiki
9、twice───adv.两次；两倍
1、Compared with the original two kinds of Phase-Difference Correction, only one sequence of time-domain signal is sampled and FFT analysis of same points is performed twice in this method.───与原两种相位差法相比，这种方法只采一段时域信号，且进行两次相同点数的FFT分析。
2、tips: the phone with Zongye wrap, Guo Lizhu on 60 minutes, cell phone batteries, continued ability to be extended twice, the signal enhancement, and call dumplings can smell the aroma.───秘诀：将手机用粽叶包好，放在锅里煮60分钟，手机电池续电能力将延长两倍，信号增强，而且打电话时能闻到粽子香味。
3、The lighthouse flashes signal twice a minute.───灯塔一分钟发两次闪光信号。