本文在介绍回声测深仪基本工作原理的同时，介绍了回声测深仪在杭州湾口外一拟建大型码头水下地形测量的一个应用实例。
The paper briefs the basic principles of the fathometer and its application to submerged landform measurement near a planned large dock out of the Hangzhou Bay.
本文在介绍回声测深仪基本工作原理的同时，介绍了回声测深仪在杭州湾口外一拟建大型码头水下地形测量的一个应用实例。
The paper briefs the basic principles of the fathometer and its application to submerged landform measurement near a planned large dock out of the Hangzhou Bay.
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