MRL
MRL stands for:
- Machine room-free elevator, see elevator system #Hydraulic elevator
- Machinery directive of the EU, see directive 2006/42 / EG (machinery directive)
- Media Resource Locator in media players
- Minute reserve power in energy technology, see control power (power grid) # Tertiary control (minute reserve)
mrl stands for:
- Mortlockesian language (ISO-639-3 code), language of the Mortlock Islands , Caroline Islands
