n.磁学
North magnetic poles repel (each other). 磁北极与磁北极互相排斥。
The block becomes magnetic when the current is switched on. 通电时线圈即具磁性。
The loop becomes magnetic when the current is switched on. 通电时线圈就会有磁性。
She has a magnetic personality. 她具有极具吸引力的性格。
n.铁磁质
微磁学
