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| 空气微粒摩擦 | |||
| 空气阻力 | |||
| 风摩擦 | |||
| 空气摩阻; 空气摩擦; 空气摩擦阻力 | |||
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air friction : 15 phrases in 6 subjects |
| Drilling | 1 |
| Electric machinery | 1 |
| Oil / petroleum | 4 |
| Rail transport | 3 |
| Space | 1 |
| Technology | 5 |
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