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Terms for subject United Nations containing echo sounding | all forms | exact matches only | in specified order only
| English | Chinese |
| multibeam echo sounding measurement | 多波束回声测深数据 |
| single-beam echo sounding measurements | 单波束回声测深数据 |
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| English | Chinese |
| multibeam echo sounding measurement | 多波束回声测深数据 |
| single-beam echo sounding measurements | 单波束回声测深数据 |