YD/T 1538-2006.Technical Requirements and Testing Methods for Acoustics Performance of Digital Mobil...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 1538-2011 数字移动终端音频性能技术要求及测试方法
YD/T 1538-2011.Technical requirements and testing methods for acoustics performance of digital mobil...