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| fluctuating velocity | |||
| velocity of wave motion | |||
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波动速度 : 20 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Electric machinery | 3 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Space | 1 |
| Swimming | 2 |
| Technology | 3 |
| Wind Energy | 1 |
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