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示位标
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工学
水运交通指示
释
position indicating mark
示位标
设在湖泊、水库、水网地区或其他宽阔水域与重要航道附近,标示岛屿、浅滩、礁石及通航河口等特定位置,供船舶定位或确定航向的水上助航标志,又称灯塔。在内河航道可以为各种形状的塔形体。塔身外涂有显明的颜色,便于船舶识别。
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upflow anaerobic sludgeblanket reactor
upgoing wave and downgoing wave
up grinding
upheaval of road pavement
uphill
uphill diffusion
U Pho Latt
upholding morality and using carefully penalization
Uphold Tao and Eliminate Evil
upholstered furniture
upholstery twill silk for picture mounting
UPI
up in the air
Up in the Lakeside Tower
UPJO
up-ladder
up-ladder operator
upland cotton
upland plant
upland rice
upland rice cyst nematode disease
upland soil microbes
UPLC
up-leg light time
uplift
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