magnetic gum磁性橡胶magneticadj.有磁性的；有吸引力的；催眠术的n.磁体，磁性物质magnetic influence磁影响magnetic dust core磁性铁粉心,压粉磁心,铁粉心,磁粉心magneticseparation磁选magnetic technique磁性技术magnetic flowmeter磁通计,磁流测量计magnetic tape loop磁带环magnetic head loss磁头损耗magnetic materials磁性材料magnetic disk file磁盘文件magnetic inspector磁性探场器