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| 汽车声学声传播路径 | |||
| 声音传播途径 | |||
| 声迹; 声程 | |||
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sound path : 12 phrases in 6 subjects |
| Automobiles | 2 |
| Fishery fishing industry | 4 |
| Refrigeration | 3 |
| Space | 1 |
| Technology | 1 |
| United Nations | 1 |
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