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whistle board
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whistle board
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工学
水运交通指示
释
whistle board
鸣笛标
设在通航控制河段或上、下行船舶不能相互通视的急转弯的上下游两端河岸上,指示船舶鸣笛的水上助航标志。
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anti-pilling finishing
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anti plasticization
anti-plasticization
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antipodal cell
antipodal mapping
antipodal points
antipodal set
antipodal space
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antipolar
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antipolarity
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