深拖装置也用于旁侧扫描声纳、重力以及磁法勘探。

Deep tow devices are used for some side-scan sonar, gravity and magnetic surveys.

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在此次例行探险的最后一次潜底时，扫描声纳在海底发现了一个大型物体。

On the final dive of the trip, the scanning sonar detected a large object on the seafloor.

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每个单用机器人在前后两端都各有一个照相机、一个进行水下扫描的声纳和一个用来寻找下水管道锈蚀的激光器。

Each Solo carries a camera at either end, sonar to scan below the water, and lasers to search sewer walls for acid corrosion.

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