标准查询 标准查询电影技术.在8mmS型电影胶片上带的录音磁头的缝隙和磁带.位置和宽度尺寸
Cinematography; Magnetic stripes and recording head gaps for sound record on 8 mm Type S motion-picture films; Position and width dimensions
标准查询Cinematography; Magnetic stripes and recording head gaps for sound record on 8 mm Type S motion-picture films; Position and width dimensions
