magnetic key磁动电键magneticadj.有磁性的；有吸引力的；催眠术的n.磁体，磁性物质magnetic-flux meter磁通表,磁通量表magnetic field driver磁场驱动器magnetic card machine磁卡机magnetic tape machine磁带机magnetic stripe store磁条存储器magnetic displacement磁位移magnetic drum coating磁鼓镀层magnetic erasing head消磁磁头magnetic fluid sensor磁流体传感器magnetic storm effect磁暴效应