| 单词 | sonar |
| 释义 | sonar UK ['səʊ.nɑ:r] US ['soʊ.nɑ:r] noun uncountable ■equipment, especially on a ship, which uses sound waves to discover how deep the water is or the position of an object in the water, such as a group of fish 声纳（一种声波探测仪器，用声波测定水的深度或水下物体的方位） |
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