| Subject | English | German |
| earth.sc., mech.eng. | total to static efficiency | isentroper Kupplungs-Wirkungsgrad |
| refrig. | total to static efficiency | isentroper Kupplungs- Wirkungsgrad ausschließlich Austrittsenergie |
| earth.sc., mech.eng. | total to total efficiency | isentroper Kupplungs-Wirkungsgrad |
| refrig. | total to total efficiency | isentroper Kupplungs- Wirkungsgrad einschließlich Austrittsenergie |