 |
| |||
| charge non permanente (of soil colloids); charge variable (of soil colloids) | |||
|
variable charge : 3 a las frases, 2 temas |
| Comunicaciones | 1 |
| Finanzas | 2 |
|
| |||
| charge non permanente (of soil colloids); charge variable (of soil colloids) | |||
|
variable charge : 3 a las frases, 2 temas |
| Comunicaciones | 1 |
| Finanzas | 2 |