| Subject | English | Portuguese |
| mech.eng. | engine control | comandos do motor |
| transp., mech.eng. | engine control | comando do motor |
| transp., nautic., mech.eng. | engine control centre | posto de controlo da casa da máquina |
| transp. | engine control using thyristors | comando dos motores por tiristor |
| mech.eng. | engine controls and instruments | comandos do motor e instrumentos |
| transp., avia., mech.eng. | full authority digital electronic engine control | controlo eletrónico digital de autoridade completa |
| transp., industr. | full authority digital engine control | controlo eletrónico digital "full authority" |
| transp., industr. | full authority digital engine control | controlo digital "full authority" de motores |
| transp., industr. | full authority digital engine control | comando digital de motor com controlo total |
| transp., industr. | fully automated digital engine control | controlo eletrónico digital "full authority" |
| transp., industr. | fully automated digital engine control | controlo digital "full authority" de motores |
| transp., industr. | fully automated digital engine control | comando digital de motor com controlo total |
| mech.eng. | main engine control | comando do motor principal |