This induction field is so powerful that it causes electrons in a conductor, like aluminium, to create their own magnetic field.

但是这个感应场的磁性非常强大，能够使导体产生电子，比如说铝，创造出它们自己的磁场。

It's a big drum with a spinning rotor that contains magnetic poles, which creates a really strong, magnetic field called an " induction field" .

它是一个有磁性的飞速旋转的大滚筒，一个可以创造出“感应场”的强大磁场。