“磁体”造句
两个
磁体的N极和S极互相吸引.
The N pole and S pole of two magnets will attract each other.
为了做成电
磁体你需要对金属线送电.
To make an electromagnet you need to send a current through the wire.
棒形或马蹄形
磁体称为永
磁体.
A bar on horseshoe magnet is called a permanent magnet.