注解珊瑚粗石堆在前景，那是创造经由拖曳用的网在珊瑚礁上。

Note the coral rubble in the foreground, which was created by the net dragging on the coral reef.

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拖杳行走用拖曳的步子走或前进；

To walk or proceed with dragging steps; trudge.

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建立了水下拖曳系统在非均匀流场中的力学模型，用有限差分法计算收放缆时拖缆的姿态。

A dynamic model of the towed system was established in the non-uniform wake flow field, and the shape of the towed system was investigated by finite difference method.

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建立了水下拖曳系统在非均匀流场中的力学模型，用有限差分法计算收放缆时拖缆的姿态。

A dynamic model of the towed system was established in the non-uniform wake flow field, and the shape of the towed system was investigated by finite difference method.

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