GB/T 4644-1984 单边片孔单条16mm影片的磁性声带的录音与还音磁头的隙缝位置和宽度尺寸

标准编号：GB/T 4644-1984

标准名称：单边片孔单条16mm影片的磁性声带的录音与还音磁头的隙缝位置和宽度尺寸

英文名称：Magnetic stripes and recording and reproducing head gaps for magnetic sound recordson 16mm motion-picture film perforated along one edge--Positions and width dimensions