signalled是什么意思

2024-02-09 10:32:17

signalled

美[sɪgnəld] 英[sɪgnəld]

adj. 信号的；预示的；告知的

sp. 动词signal的过去式和过去分词.

名词signal

any nonverbal action or gesture that encodes a message
any incitement to action
an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

In digital signal technique, a signal that uses a positive(or negative) excursion and ground as the two binary signal states.在数字信号技术中，用正(或负)向电压与地两个电平来表示二进制“1”和“0”的一种信号
A police car drew alongside and signalled to me to stop.一辆警车开到我身边示意我停下来。
The defeat signalled the end of the war.那一次失败标志着战争的结束。
Heavy footsteps signalled the teachers approach.沉重的脚步声显示教师已经走近了。