片语
cocr vertical recording film medium钴铬垂直记录薄膜媒体
holography recording medium全息记录材料
Hologram recording medium发明名称
reference recording medium基準记录介质
magnetic recording medium material磁记录介质材料
Recording medium Slave锹冀橹
Optical information recording medium发明名称
magnetic recording medium磁记录媒体
Perpendicular Magnetic Recording Medium垂直磁记录介质