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| 实际速度 | |||
| 有效流速; 实地流速 | |||
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field velocity : 31 phrases in 9 subjects |
| Aviation | 2 |
| Electric machinery | 1 |
| Electronics | 1 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Hydroelectric power stations | 2 |
| Metallurgy | 3 |
| Oil / petroleum | 2 |
| Technology | 15 |
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