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断面的 : 102 phrases in 18 subjects |
| Agriculture | 1 |
| Architecture | 6 |
| Automobiles | 3 |
| Earth sciences | 1 |
| Economy | 3 |
| Electronics | 4 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 14 |
| Geophysics | 1 |
| Hydrology | 1 |
| Industry | 1 |
| Lighting other than cinema | 1 |
| Metallurgy | 12 |
| Plastics | 1 |
| Refrigeration | 2 |
| Securities | 1 |
| Shipbuilding | 1 |
| Technology | 47 |
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