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| English thesaurus | |||
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| ECIP | |||
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Energy Conservation : 32 phrases in 13 subjects |
| Astronomy | 2 |
| Chemistry | 1 |
| Computers | 1 |
| Construction | 2 |
| Economics | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| Environment | 3 |
| General | 9 |
| Natural resourses and wildlife conservation | 1 |
| Physics | 7 |
| Refrigeration | 1 |
| Technology | 1 |