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道床结构
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道床结构
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道床结构
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track bed structure
道床结构
铺设于路基、桥梁或隧道结构之上,钢轨、轨枕之下及周边的碎石、卵石层或钢筋混凝土层。是轨道重要组成部分,轨道框架的基础。
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panel absorption
panel count data
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panel data analysis
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panel display technique
paneled magic square
paneled wood frame structure furniture
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Panel of the Wise
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panel-panel adhesive
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panel-type furniture
panel vector autoregression
panel-wooden furniture
Paneth crater
Paneth-Fajans-Hahn adsorption rule
Pan-family Management
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panformation
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