3C(China Compulsory Certification,中国强制性产品认证制度) 3D(Three Dimensional,三维) 3DCG(3D computer graphics,三维计算机图形) 3DNow!(3D no waiting,无须等待的3D处理) 3DPA(3D Positional Audio,3D定位音频) 3DS(3D SubSystem,三维子系统) 3GIO(Third Generation Input/Output,第三代输入输出技术) AA(Accuview Antialiasing,高精度抗锯齿) AAC(Advanced Audio Compression,高级音频压缩) AAM(AMD Analyst Meeting,AMD分析家会议) AAM(Automatic Acoustic Management,自动机械声学管理) AAS(Automatic Area Segments) AAT(Average access time,平均存取时间