The Hydrographic Office carries out hydrographic surveys and produces bilingual nautical charts.

海 道测量和制作兼备中、英文的海图。

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With the establishment of the Hydrographic Office the British Navy had its own map department, engravers, and printing facilities.

随着水道测绘局的成立，英国海军有了自己的地图绘制部门、雕版工、印刷设备。

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The Hydrographic Office has taken over provision to the shipping community of nautical services which were provided by the British Admiralty before the reversion of sovereignty on July 1, 1997.

为航运界提供航海服务，在七月一日回归前原本是英国海军的职责。回归后，这项工作已由海道测量部接手负责。

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The Hydrographic Office has taken over provision to the shipping community of nautical services which were provided by the British Admiralty before the reversion of sovereignty on July 1, 1997.

为航运界提供航海服务，在七月一日回归前原本是英国海军的职责。回归后，这项工作已由海道测量部接手负责。

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