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This map marked some parts of China, Korean, Japan, Philippines, Indonesia, Southeast Asia and India, of great significance in terms of practicality and ocean navigation. 地图标注了中国的局部，韩国，日本，菲律宾，印度尼西亚，东南亚和印度，在实用性与导航方面具有极其重要的意义。 - 2
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。 - 3
The 3 Glonass-M navigation satellites, which have been launched earlier Sunday, crashed in the Pacific Ocean off Hawaii Islands after falling off course, RIA news agency reported. 据俄新社报道，俄罗斯5日发射的3颗"格洛纳斯-M"导航卫星脱离轨道，坠入夏威夷岛附近的太平洋。
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