marine navigation造句怎么写

Today's marine navigation radar is digital, multi-functional, high-performance, multi interface and networked.

A tall structure topped by a powerful light used as a beacon or signal to aid marine navigation.

Requirements for interface of marine navigational radar

Carrying out ocean geological surveys, prospecting, and hydrographic surveys that hinder marine navigation safety; and

Carrying out any other activities affecting the safety of marine navigation and operations.

The bits and pieces left over from the engineering project of laying submarine cables and pipelines and from the dismantling project shall be disposed of carefully and must not hamper the normal order of marine navigation and transportation.