| English thesaurus | |||
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| PCM | |||
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Power Control : 50 phrases in 13 subjects |
| Commerce | 1 |
| Communications | 5 |
| Earth sciences | 3 |
| Electricity generation | 3 |
| Electronics | 12 |
| Energy industry | 2 |
| Finances | 1 |
| Information technology | 2 |
| Magnetics | 2 |
| Mechanic engineering | 11 |
| Patents | 1 |
| Technology | 4 |
| Transport | 3 |