detector set
英
美
- 检波器接收机,矿石收音机
双语例句
- Raymond Chiao remembers the day, during his childhood in Shanghai, when his brother built a crystal radio set and invited him to try it.
乔瑞宇还记得，小时候住在上海时，哥哥制作了一部矿石收音机，调整好后叫他来试用看看。
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