| |||
| puesta a tierra de protección | |||
| puesta a tierra protectora | |||
|
protective earthing : 5 phrases in 4 subjects |
| Chemistry | 1 |
| Electric machinery | 1 |
| Energy industry | 1 |
| Isolation | 2 |
| |||
| puesta a tierra de protección | |||
| puesta a tierra protectora | |||
|
protective earthing : 5 phrases in 4 subjects |
| Chemistry | 1 |
| Electric machinery | 1 |
| Energy industry | 1 |
| Isolation | 2 |