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| 螺纹口: 55 phrases in 12 subjects |
| Architecture | 3 |
| Automobiles | 3 |
| Aviation | 2 |
| Chemistry | 1 |
| Hydrology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Shipbuilding | 1 |
| Technology | 37 |
| Textile industry | 1 |
| Wind Energy | 1 |
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