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| 回声测定 | |||
| 声隔测距法; 声波测距 | |||
| 回声定位; 回声测位 (通过反射的超波以辨别在空间的方位); 回声定位〔法〕; 回波定位〔法〕; 回声测位〔法〕; 回声测位法; 回波定向法; 回波测位法 | |||
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эхолокация : 5 phrases in 1 subject |
| Fishery fishing industry | 5 |
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