 |
| |||
| proton exchange film (sheetikoff) | |||
| proton-exchange membrane | |||
| pem (proton exchange membrane) | |||
| proton exchange membrane (для топливных элементов) | |||
| PEM (Proton Exchange Membrane sega_tarasov) | |||
| протонообменная мембрана: 14 do fraz, 5 tematyki |
| Makarowa | 6 |
| Nanotechnologia | 1 |
| Pospolicie | 5 |
| Przemysł energetyczny | 1 |
| Technika i technologia | 1 |