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| impedance ratio acoustic | |||
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| impedance ratio | |||
| 阻抗 比: 23 phrases in 8 subjects |
| Construction | 1 |
| Electric machinery | 2 |
| Electronics | 2 |
| General | 2 |
| Information technology | 1 |
| Oil / petroleum | 2 |
| Technology | 12 |
| Telecommunications | 1 |
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