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