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接地线接地导线 : 19 phrases in 10 subjects |
| Architecture | 1 |
| Chemistry | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Information technology | 1 |
| Lighting other than cinema | 1 |
| Metallurgy | 3 |
| Shipbuilding | 1 |
| Technology | 6 |
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