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航道侧面标
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航道侧面标
Encyclopedia
工学
水运交通指示
释
fairway side mark
航道侧面标
设在浅滩、礁石、沉船或其他碍航物靠近航道一侧,标示航道的侧面界限;设在水网地区优良航道时,标示岸形、突嘴或不通航的汊港的水上助航标志。指示船舶在航道内航行。
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urban vegetation restoration
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urban village renovation
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Urban Zoning Theory
urbaryon
URCA process
Urca process
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urchin
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Urdu language
URE
urea
urea acetaldehyde
urea aldehyde slow release fertilizer
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