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| 滤清器阻力 | |||
| 过滤器阻力 | |||
| 滤波电阻 | |||
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filter resistance : 21 phrases in 7 subjects |
| Air defense | 1 |
| Electronics | 1 |
| Metallurgy | 10 |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 4 |
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