卫星定位值间的内插最初用的是推算航行法。
Interpolation between satellite positions was initially carried out by dead - reckoning procedures.
这种航行法常被叫做“jib and jigger”——jigger是对于船尾桅杆上的三角帆的古老叫法。
This is popularly called sailing under “jib and jigger”—the jigger being an old square-rigger term for the aft-most mast flying a triangular sail.
海岸卫队，海岸警备队：国家武装力量的分支，负责海岸防卫，保护海上生命和财产，实施海关法、移民法和航行法。
The branch of a nation's armed forces that is responsible for coastal defense, protection of life and property at sea, and enforcement of customs, immigration, and navigation laws.
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