铁路路基 meaning in Chinese

body of railroad
railroad bed
railway bed

On the application of mine waste in railway foundation
浅谈矿井矸石在铁路路基上的应用
Experimental study on using coal slack as the filling of roadbed
矿区煤矸石填筑铁路路基的应用
Probe into some problems in roadbed construction of wanda railway
达万铁路路基施工若干问题的探讨
Inspection and evaluation of curved railway embankment settlement
曲线铁路路基下沉病害检测与分析
Code for construction on subgrade of railway
铁路路基施工规范

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