5 canlyniad
Rhestrir y canlyniadau yn ôl perthnasedd.
Cymraeg: Tŷ Pwmpio
Saesneg: Pumphouse
Cymraeg: offer Pwmpio Cyfeintiau Mawr
Saesneg: High Volume Pumping
Cymraeg: gorsaf bwmpio
Saesneg: pumping station
Saesneg: The Glyn Rhonwy Pumped Storage Generating Station (Amendment) (Wales) Order 2021
Saesneg: The Glyn Rhonwy Pumped Storage Generating Station (Amendment) (Wales) Order 2024