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енергийна | ефективност
| ефективност | |
| agric. | hatásfok; hatásosság; hatékonyság |
| econ. account. | eredményesség |
| енергийна: 45 phrases in 11 subjects |
| Ecology | 1 |
| Economy | 7 |
| Electronics | 1 |
| Energy industry | 14 |
| Environment | 8 |
| Finances | 4 |
| General | 2 |
| Law | 4 |
| Medical | 1 |
| Statistics | 2 |
| Transport | 1 |