| |||
| показатель кислотности раствора (MichaelBurov) | |||
|
measure of the acidity of solution : 2 phrases, 1 sujets |
| Pétrole / pétrole | 2 |
| |||
| показатель кислотности раствора (MichaelBurov) | |||
|
measure of the acidity of solution : 2 phrases, 1 sujets |
| Pétrole / pétrole | 2 |