| 1. | General specifications for echo sounder
垂直回声探鱼仪通用技术条件
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| 2. | Ceres combined echo ranging echo sounding
统一的回声测距与测深
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| 3. | Inspection installation and water tightness transducer of echo sounder on berth
测深仪换能器船台安装和水密性检查。
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| 4. | Supersonic echo sounder
超声波回声探测仪
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| 5. | Digital echo sounder
数码回声测深仪
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| 6. | Echo sounding machine
回声测深仪
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| 7. | A device used underwater to produce pulses of sound , as for an echo sounder
声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置
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| 8. | Application of gps - rtk integrated with digital echo sounder to underwater topography survey
与数字测深集成技术在水下地形测量中的应用
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| 9. | In bathymetric survey , the recorded seabed is distorted due to the beam - width of the echo sounder
摘要在海底地形测量中，由于波束角效应导致探测的海底地形存在失真。
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| 10. | He tried it ; but in the darkness the distant echoes sounded so hideously that he tried it no more
他叫了几声，可是黑暗中，回声听起来十分可怕，他只好停下来，不再叫喊。
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