| ETOPS | Extended Twin (Engine) Operations | 扩展双（发动机）操作 |
| ETOPS | Engines Turn Or Passengers Swim | 引擎转弯或乘客游泳 |
| ETOPS | Engines Turn(ing) Or Passengers Swim(ming) | 引擎转弯或乘客游泳 |
| ETOPS | Extended Twin-Engine Over-water Operations | 扩展双发动机水上操作 |
| ETOPS | Extended Twin-Engine Over Water Operations | 扩展双发动机水上操作 |
| ETOPS | Extended-Range Twin-Engine Operational Performance Standards | 增程双发动机运行性能标准 |