BS ISO 6953-1:2024 信息技术 运动图像和相关音频信息的通用编码 第7部分:高级音频编码(AAC)修改件1:AAC 中 MPEG 环绕声的传输
Pneumatic fluid power. Compressed air pressure regulators and filter-regulators - Main characteristics to include in supplier's literature and product-marking requirements