sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Atacama Pathfinder EXperiment Control System | ** |
| Adapted Patient Evaluation Conference System | ** |
| ALSTOM Power Environmental Control Systems | ** |
| Automated Program to Enforce Child Support | ** |
| And Processors the Chip Sets | ** |
| Association for Professional Executive Coaching Supervision | ** |
| Advanced Process Engineering Co Simulation | ** |
| Advanced Power Electronics Controllers for Substations | * |
| Aircrew Personal Environmental Control System | * |
| Advanced Proportional Engine Control System | * |
| Amphibious Plant for Environmental Control and Safeguard | * |