1、I often set my watch by the time signal in the telephone.
我常常按電話里的報(bào)時(shí)信號對表。

2、You can also activate hourly time signal that indicates each full hour.
您還可以激活每小時(shí)時(shí)間信號，表明每個(gè)整整一個(gè)小時(shí)。

3、"Modulation domain" is a plane domain which is consisted of frequency and time signal axes.
“調(diào)制域”是由信號的頻率和時(shí)間兩個(gè)軸構(gòu)成的平面域。

time signal翻譯