Non-broadcast video tape recorders - Methods of measurement - Part 1: General video (NTSC/PAL) and audio (longitudinal) characteristics (IEC 61041-1:1990); German version EN 61041-1:1995
非广播磁带录像机.测量方法.第1部分:一般视频(NTSC/PAL)和音频(纵向)特性(IEC 61041-1-1990);德文版EN 61041-1:1995