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变化的力 : 32 phrases in 12 subjects |
| Aerohydrodynamics | 1 |
| Automobiles | 3 |
| Bridge construction | 1 |
| Chemistry | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 17 |
| Wind Energy | 2 |
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