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| 回声探深仪; 回声探测器; 回声测深仪; 回声测深器 | |||
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| 回声测深仪; 声波探测仪; 音波探測儀 | |||
| 回声仪 | |||
| 回声测深〔探测〕器 | |||
| 声波测深器 | |||
| 声探测器 | |||
| 回声探深仪; 回声测深器 | |||
| 回声探测器 | |||
| acoustical sounder: 10 phrases in 5 subjects |
| Acoustics | 1 |
| Mining | 1 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 4 |
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