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inland waterway navigation
释义
inland waterway navigation
Encyclopedia
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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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Orinoco River
Orioles in the Spring Willows
Orioles Singing in the Willows
Orion
Orion aggregate
Orion Arm
Orion association
Orionid meteor shower
Orionids
Orion KL
Orion Loop
Orion manned spacecraft
Orion Molecular Cloud
Orion Nebula
Orion nebula
Orion population star
Orion's belt
Orion spectrum
Orion spur
Orion's sword
Orion-type flare star
Orion variable
orisphere
Orissa Pradesh
Orissa Temples
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