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gyration radius : 26 phrases in 10 subjects |
| Bridge construction | 9 |
| Chemistry | 1 |
| Hydroelectric power stations | 3 |
| Nautical | 2 |
| Oil / petroleum | 1 |
| Physical sciences | 1 |
| Polymers | 1 |
| Sports | 1 |
| Technology | 6 |
| Wind Energy | 1 |
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