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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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heavy ion
heavy ion accelerator
heavy-ion accelerator
heavy ion beam
heavy ion beam driven fusion
heavy-ion beam driven fusion
heavy-ion collision
heavy ion collision in intermediate energy
heavy ion fusion evaporation reaction
heavy-ion fusion evaporation reaction
heavy ion fusion-fission
heavy ion fusion reaction
heavy ion induced desorption
heavy ion induced desorption (HIID)
heavy ion jet interaction generator
heavy-ion jet interaction generator
heavy ion linear accelerator
heavy ion nuclear chemistry
heavy ion radioactivity
heavy-ion radioactivity
heavy ion reaction
heavy-ion reaction
heavy isotope
heavy knock
heavy launch vehicle mobile launch platform
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更新时间:2026/11/2 14:58:19