| Subject | English | German |
| nat.sc., energ.ind. | active system | aktives Solarsystem |
| opt. | active system | aktives System (system where an illuminating beam is used) |
| nat.sc., energ.ind. | active system | aktive Sonnenenergie |
| energ.ind., construct. | active system | aktives System |
| tech. | active system | aktives Verfahren |
| busin., IT | active system component | aktive Systemkomponente |