magnetic hum磁哼声magneticadj.有磁性的；有吸引力的；催眠术的n.磁体，磁性物质magnetic slot-wedge磁槽楔magnetic domain walls磁畴壁magnetic tape handler磁带装置magnetic tubes of flux磁通量管magnetic field sensing磁场传感Magnetic Oxide of Iron四氧化三铁, 黑氧化铁, 8651黑氧化铁, 磁性氧化铁[药用辅料]magnetic superlattices磁超晶格magnetic field cooling磁场冷却magnetic annual change磁周年变化magnetic survey method磁测法