Overall electro-acoustic frequency response for reproduction of 35mm optical sound track—Reproduction characteristics
NEQ ISO 7831-86
广播电影电视部中国电影科学技术研究所
This standard is the original Chinese electronic standard. If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com. After you successfully purchase, we will send the electronic version of this standard to your email address
