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击梁 : 42 phrases in 12 subjects |
| Architecture | 2 |
| Automobiles | 1 |
| Bridge construction | 1 |
| Electric machinery | 2 |
| Football | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Plastics | 12 |
| Polymers | 5 |
| Space | 3 |
| Technology | 11 |
| Water resources | 1 |
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