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inland waterway navigation
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inland waterway navigation
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inland waterway navigation
内河航行
船舶在内河航道(江、河、湖泊、水库和人工运河)的航行。船舶驾驶员根据航道的地形、水文、气象等特点,利用航标、航海仪器、航行图等引导船舶安全航行。
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Steiner chain
Steiner circle
Steiner circumellipse
Steiner construction
Steiner curvature centroid
Steiner curve
Steiner deltoid
Steiner Education in Theory and Practice
Steiner ellipse
Steiner hypocycloid
Steiner inellipse
Steiner point
Steiner porism
Steiner problem
Steiner quadruple system
Steiner segment problem
Steiner set
Steiner surface
Steiner symmetrization
Steiner system
Steiner theorem
Steiner tree
Steiner tree problem
Steiner triangle
Steiner triple system
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