饱和磁记录
saturation magnetic recording
便携式磁记录器
portable magnetic recorder
触式磁记录法
contact magnetic recording
垂直磁记录
the perpendicular magnetic recording
Perpendicular magnetic recording
垂直磁记录材料
perpendi cular magnetic recording material
垂直磁记录介质
perpendicular magnetic recording media
磁记录
magnetic recording
magnetic recording material
magnetic field simulation
tape recorder
磁记录材料
magnetic recording material
magnetic recording materials
magnetic recording medium
磁记录技术
magnetographic technology
磁记录介质
magnetic recording medium
magnetic recording media