Currently, the navigation system has gradually become a hot topic. There are various navigation products in the market, including on-board navigation systems, ocean navigation systems.

当前，导航系统已逐步成为一项研究热点，各类导航产品已进入市场，包括车载导航系统，远洋轮船导航系统等。

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The Huangpu Port, where ocean-going ships can anchor, has navigation lines reaching all continents in the world.

黄埔港可泊远洋海轮，有航线通往世界各大洲。

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Ocean current exerts a great influence on ship navigation and sailing safety.

海流对船舶导航、航行安全影响较大。

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Mr Smith took a degree in Ocean Science and Marine Navigation at the University of Plymouth.

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And on 5 December last year, a Proton carrying three navigation spacecraft fell into the Pacific Ocean.

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The Bush administration is urging the Senate to consent this summer to the Convention on the Law of the Sea, the complex and sprawling treaty that governs shipping, navigation, mining, fishing and other ocean activities.

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