detector set

• 检波器接收机,矿石收音机

detector set的用法和样例：

例句

1. 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。