国家标准_第411页 - 在线标准查询

GB/T 4637-1994 35mm磁片上三声轨、四声轨和六声轨磁头隙缝的位置和宽度尺寸

GB/T 4637-1994.Head gaps and sound records for three-,four- ,or six-track magnet...

GB/T 4638-1997.Picture image area and photographic sound record on 35 mm motion-...

GB/T 4639-2000.Cinematography-Monophonic 35 mm negative photographic sound recor...

GB/T 4640-2000.Camera usage of 35 mm motion-picture film.1范围GB/T 4640规定了35mm电影摄影...

GB/T 4641-2000.Camera usage of 16 mm motion-picture film.1范围GB/T 4641规定了16 mm摄影机...

GB/T 4643-2002.Cinematography-16 mm negative photographic sound record on motion...

GB/T 4645-1994.Screen luminance for the projection of motion-picture prints in i...

GB/T 4961- 1999.Time signal in radio broadcasting.1适用范围GB/T 4961规定了广播报时信号。GB/T 4...

GB 4963-1985.Normal equal-loudness contours for pure tones under free field llst...

GB/T 5301-2002.Cinematography- Safe picture areas for motion-picture films for t...

