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| 回声测探仪 | |||
| 回声测深仪 | |||
| 回声探测仪; 音响测深仪 | |||
| 回声测深声呐; 回声测深器; 声波测深 (法); 回声〔回音〕测深仪 | |||
| English thesaurus | |||
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| sdf | |||
| sonic depth finder: 2 phrases in 2 subjects |
| Engineering geology | 1 |
| Oil / petroleum | 1 |
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