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 tape control磁带控制magnetic head cleaner磁头清洗器magnetic dust removal磁力除法magnetic flocculation磁力絮凝magnetically confined磁场约束Magnetic determinator磁测仪magnetic-switchgear磁力控制站magnetic tape cabinet磁带机柜magnetic sound camera磁性录音摄影机magnetic stratigraphy磁电层学