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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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dupuit formula for well in phreatic aquifer
Dupuy
Duqiao Zhen
Du Qin
Du Qinghua
Du Qiong
duqi pill
Duqi Shanzhuang Cihua
Du Quan
durability
durability design
durability design of concrete structures
durability design of hydraulic structures
durability of archive materials
durability of building
durability of catalyst
durability of cement and concrete
durability of concrete
durability of internal combustion engine
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durable press grade
dural drains
duralumin
dural venous sinus
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