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封接 的 : 21 phrases in 9 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Construction | 1 |
| Drilling | 2 |
| Electronics | 1 |
| General | 2 |
| Oil / petroleum | 3 |
| Polygraphy | 2 |
| Technology | 8 |
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