magnetical blow-out spark-gap of an arrester

例句：

1. 1.The magnetized iron filings attracted the paper to the magnet.
   被磁化的铁屑吸引了纸张到磁铁上。
2. 2. The magnetic field of the Earth affects the movement of objects on it.
   地球的磁场影响了物体在它上面的运动。
3. 3.The magnetized wire has been used in many applications, such as recording and reproducing audio signals.
   被磁化的电线已经被用于许多应用，比如记录和复制音频信号。