The HydrographicOffice carries out hydrographic surveys and produces bilingual nautical charts.
海 道 测量 和制作兼备中、英文的海图。
2
With the establishment of the HydrographicOffice 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。
3
The HydrographicOffice 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.