sea-level chart

With the simulated cotidal chart of M2 tidal constituent, the distributing characteristics of the amplitude and the phase lag of M2 in the sea region near Zhanjiang are revealed.

根据模拟结果绘制的M2分潮的同潮图，揭示了湛江附近海域M2分潮振幅和迟角的分布特征以及M2分潮的传播和发展规律。

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They tried to chart the sea area between Norway and Denmark.

他们企图绘制挪威与丹麦之间的海域图.

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On September 13, the Chinese government deposited the coordinates table and chart of the base points and baselines of the territorial sea of Diaoyu Dao and its affiliated islands with the Secretary-General of the United Nations.

9月13日，中国政府向联合国秘书长交存钓鱼岛及其附属岛屿领海基点基线的坐标表和海图。

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To the north of that, again, there comes another cape-Cape of the Woods, as it was marked upon the chart-buried in tall green pines, which descended to the margin of the sea.

在沙滩以北又是另一个岬角&正是舆图上标注的森林岬角，它被岸边的高大而郁郁苍苍的松林所掩盖着。

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Most of the electronic sea chart navigation systems available measure the geographic coordinates of a ship by the GPS ( i.e. global position system), so that it is necessary for the electronic sea chart system to test timely the precision of the GPS by radar signals.

现有的电子海图导航系统主要靠全球定位系统（GPS）来测量舰船的地理坐标，用雷达信号适时检验GPS的定位精度就成为电子海图系统不可少的功能。

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You'd belter sail with sea chart, for this area is very complex.

你最好携带海图出行, 这片海域的海况很复杂.

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