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| 增斜钻具组合; 造斜钻具组合 | |||
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building assembly : 48 phrases in 8 subjects |
| Aviation | 10 |
| Business | 1 |
| Drilling | 2 |
| Hydroelectric power stations | 1 |
| Navigation | 1 |
| Space | 24 |
| Technology | 6 |
| United States | 3 |
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