最初的无线电广播设备采用的是波幅调制。
The first radio broadcasts were made using amplitude modulation.
一位海军陆战队步行巡逻兵使用了可折叠的太阳能板为他们的无线电广播设备和GPS发电。
One of the marine foot patrols uses roll-up solar blankets to generate power for their radios and GPS.
无线电广播接收设备，不论是否与声音的录制、重放装置或时钟组合在同一机壳内。
Reception apparatus for radio-broadcasting, whether or not combined, in the same housing, with sound recording or reproducing apparatus or a clock.
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