crystal radio

基本解释

Will it replace a headset on a crystal radio?
是否会取代晶体收音机一耳机一？
He remembers with perfect clarity building a crystal radio in his bedroom around 1920 and amazing his mother, who thought music came only from Victrolas, with the music he “caught for free.”
他仍然清晰记得，1920年他卧室里的晶体收音机里收听到的免费音乐，给一度认为音乐只从留声机里来的母亲带来的震惊。
And similarly old crystal radio sets and more recently modern radio frequency identification (RFID) tags, increasingly used in shipping and as antitheft devices, are powered purely by radiowaves.
同样，老式晶体管收音机，以及日益普及于航运及防盗装置上的，更新式的现代无线射频识别技术（RFID），都是仅仅从无线电波中获取能量。

Since then, Akyroyd has proved himself a true renaissance man with talents not only as an Actor, but as a Producer, Radio Personality, Restaurateur (House of Blues), Wine Maker, and now as distiller of Crystal Head Vodka.
FORBES: Crystal Head to Head