Noun:

1. an early radio receiver using a crystal detector

crystalsn.晶体；结晶乙酸柏木酯名词crystal的复数形式.crystaln.水晶；结晶体；表蒙子adj.透明的；晶体的crystal sugar砂糖,冰糖crystaltippedadj.晶头的crystal model晶格模型crystal habit晶体惯态crystal plane晶体平面,晶面crystal crepe水晶绉crystal paper晶纹纸crystal class晶类Crystal Billy比利·克里斯特尔crystal seeds晶种

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。