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| English thesaurus | |||
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| CRC | |||
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Circles of : 22 phrases in 13 subjects |
| Astronomy | 1 |
| Communications | 1 |
| Electronics | 1 |
| Geology | 3 |
| Life sciences | 4 |
| Measuring instruments | 2 |
| Mechanic engineering | 2 |
| Metallurgy | 1 |
| Nautical | 2 |
| Patents | 1 |
| Police | 1 |
| Remote sensing | 1 |
| Transport | 2 |