航路指南
- 网络sailing direction;pilots
航路指南-
中国古代航海科学与文明之一翼：航路指南史略
A branch of Chinese ancient navigation science and civilization : a brief history of sailing direction
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航路指南乃是人类在航海领域中，展示其科学与文明发展水准之一翼。
Sailing direction shows the development of science and civili-zation of mankind in the navigational field .
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航路指南是对海图和气他水道部门的航海出版物的补充。郑和的第一次航行，穿越了印度洋。
Admiralty Sailing Directions are complementary to the chart and to the other navigational publications of the Hydrographic Department . On Zheng He 's first voyage , he set sail across the Indian Ocean .