| AETR | European Agreement Concerning the Work of Crews of Vehicles Engaged in International Road Transport | 欧洲国际道路运输车辆乘员工作协定 |
| AETR | Average Effective Tax Rate | 平均有效税率 |
| AETR | Advanced Engineering Test Reactor | 先进工程试验堆 |
| AETR | Advanced Epithermal Thorium Reactor | 先进超热钍反应堆 |