| EWL | Electronic Warfare Laboratory | 电子战实验室 |
| EWL | External Wavelength Locking (Agilent) | 外部波长锁定（安捷伦） |
| EWL | evaporative water loss | 蒸发失水 |
| EWL | European Waste List | 欧洲废物清单 |
| EWL | Engineer Work Line | 工程师工作线 |
| EWL | Document (Microsoft Encarta) | 文档（Microsoft Encarta） |
| EWL | Effective Working Length | 有效工作长度 |
| EWL | Equivalent Working Length | 等效工作长度 |
| EWL | Electrical Wholesale Limited (UK) | 电气批发有限公司（英国） |
| EWL | Excess Weight Loss | 过度减肥 |
| EWL | Early Warning Line | 预警线 |
| EWL | egg-white lysozyme | 蛋清溶菌酶 |