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subgrade ontology
释义
subgrade ontology
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工学
铁路路基工程
释
subgrade ontology
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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Archives Classification in China
archives classification indexing
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archives content arrangement
archives depository Center
Archives Dictionary
archives file moved south
archives flow of state owned bankrupt enterprises
archives fumigation agent
archives fumigation insecticide
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archives in Residence of Confucius Descendants
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Archives in the Ancient World
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archives in the Song Dynasty
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archives in the Tang Dynasty
archives in the Wei, Jin, Southern and Northern Dynasties
archives in the Yuan Dynasty
archives lending service
Archives Management
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