| PECS | Packaged Equipment Control System | 成套设备控制系统 |
| PECS | Pharmacy Electronic Communications Standard | 药房电子通信标准 |
| PECS | Public Emergency Call Service | 公共紧急呼叫服务 |
| PECS | Precision Encapsulation and Cure System | 精密封装和固化系统 |
| PECS | Portable Environmental Control System | 便携式环境控制系统 |
| PECS | Poultry Environmental Control System | 家禽环境控制系统 |
| PECS | Perfect Electric Conducting Structure | 完美的导电结构 |
| PECS | Performance Event Collection Services | 性能事件收集服务 |
| PECS | Picture Exchange Communication System | 图片交换通信系统 |
| PECS | Prasads Engineering and Computing Solutions | Prasads工程和计算解决方案 |