squirrel-cage magnetron

例句：

1. 1.This device is used in MRI machines to create a strong magnetic field.
   这种装置用于MRI机器中，以产生强磁场。
2. 2.The magnetron was the heart of the old radio, responsible for generating the powerful sound waves.
   磁控管是旧式收音机的核心部件，负责产生强大的声波。
3. 3.The squirrel-cage magnetron has been replaced by more advanced technology.
   这种松鼠笼磁控管已被更先进的技术所取代。