walkie-talkie是什么意思

2025-03-16 04:17:50
推荐回答(2个)
回答1:

walkie talkie是步谈机
一种小型便携式无线电通话设备。它的特点是体积小、重量轻、输出功率小、耗电省、携带方便。
一般采用单工无线电话工作方式,可手携、佩带或背负使用,发信机输出功率通常为数十毫瓦到数瓦,采用短小的鞭形天线,通信距离为数百米到数千米,军队中主要用于营以下分队。步谈机最初工作在短 波波段 ,现已发展到数十兆赫、数百兆赫波段。波道数目也从用若干个晶体的固定波道,发展到采用小型微功耗频率合成器提供的数千个波道。调制制度除调幅、调频外,还有单边带制等。
20世纪30年代开始使用电子管步谈机。1958年,出现了晶体管步谈机。70年代的步谈机已采用集成电路。军用步谈机的发展方向是采用大规模集成电路、数字技术和微处理器技术,并使步谈机具有预选波道、微音发送和话音保密等功能。
一般有调频或调幅两种方式。工作频率使用短波或超短波波段。由收发信机组、直流电源、天线等组成。通信双方可在行进中相互通话。

回答2:

walkie-talkie
对讲机
双语对照

词典结果:
walkie-talkie
[英][ˌwɔ:ki ˈtɔ:ki][美][ˈwɔkiˈtɔki]
n.手提无线电话机;
复数:walkie-talkies

以上结果来自金山词霸

例句:
1.
A walkie-talkie on the porch rail chirped.
一个门廊上轨对讲机啁啾。

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