Its purpose in life was to be the local oscillator and mixer in AM radios, and a kazillion of them were made to fill that purpose.
它本
是被用作调幅收音机中的本振和混频管，并且被大量的
这个用途。
Its purpose in life was to be the local oscillator and mixer in AM radios, and a kazillion of them were made to fill that purpose.
它本是被用作调幅收音机中的本振和混频管，并且被大量的这个用途。
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