| ATAD | Auto Thermal Aerobic Digestion | 自动热需氧消化 |
| ATAD | Atmospheric Transport and Dispersion (model) | 大气传输和扩散（模型） |
| ATAD | Autothermal Thermophilic Aerobic Digestion | 自热高温好氧消化 |
| ATAD | Access Telerobotic Assembly Demonstration | 访问远程机器人装配演示 |
| ATAD | Atmospheric Transport And Dispersion | 大气传输和扩散 |