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Shortwave

释义 Definition

短波（无线电波/短波广播）：指波长较短、频率较高的一类无线电波，通常对应高频 HF（约 330 MHz）范围；也常指利用短波进行的远距离广播/通信（短波广播、短波电台）。

发音 Pronunciation (IPA)

/rtwev/

例句 Examples

I tuned the radio to shortwave.
我把收音机调到短波频段。

Because shortwave signals can reflect off the ionosphere, international broadcasts may be heard thousands of miles away on a simple receiver.
由于短波信号可以被电离层反射，用一台简单的接收机也可能收听到来自数千英里外的国际广播。

词源 Etymology

由 short + wave 组成的复合词，字面意思是“短的波”。20 世纪无线电发展时期，人们用波长长短来区分不同无线电波段，“shortwave”因此用来指代相对“长波（longwave）”而言的短波频段及其广播/通信方式。

相关词 Related Words

文学与著作中的用例 Literary Works

*World Radio TV Handbook (WRTH)*（“世界广播电视手册”，历年版本常讨论 shortwave 频段与电台表）
Passport to World Band Radio（“世界广播频段指南/护照”，知名短波与国际广播参考书）
The Shortwave Listening Guidebook（Harry Helms 著，短波收听入门与实践类著作）

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