 |
| |||
| rational use of energy; rational utilization of energy; rational utilisation of energy | |||
| efficient use of energy | |||
| utilizzazione razionale dell'energia: 4 phrases in 2 subjects |
| Energy industry | 2 |
| Environment | 2 |
|
| |||
| rational use of energy; rational utilization of energy; rational utilisation of energy | |||
| efficient use of energy | |||
| utilizzazione razionale dell'energia: 4 phrases in 2 subjects |
| Energy industry | 2 |
| Environment | 2 |