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路基本体
包括用天然土、石所填筑的基床表层、基床底层和基床以下路堤,以及在天然地层中挖出的路堑或经换填基床处理的路堑,直接支撑轨道,承受列车荷载。路基本体根据地质条件和填筑材料的不同,又可分为路堤、路堑、半路堤、半路堑、半堤半堑、不填不挖路基。
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Tea-picking opera of Southern Jiangxi Province
Tea-picking opera of the southern Guangxi Zhuang Autonomous Region
Tea-picking opera of Western Jiangxi Province
tea-picking song-dance
tea pinching-brewing
tea plant
tea plant flower
tea plucking
tea policies
tea polyphenols
tea primary processing
tea processing
tea product
tea products
tea provincial variety
tea pruning
tea pruning machine
tear
tearage
teardrop curve
teardrop shape
teardrop surface
tea refining processing
tea re-processing
tear fault
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