00945nam a2200253 c 4500001001300000005001500013007000300028008004100031020003900072049002800111052001500139056001300154082001400167245014900181260004900330300005000379440002500429490004600454504002400500525007500524650004200599700003300641950001700674KMO20084804420190529111854ta080821s2007    ggkad         000   kor    a9788988827468g92530z9788988827460 lEM4270587lEM4270588c201a535.1b8-4  a535.12401a625.122100a선로구축물 성능향상 기술개발 =xCore technology of railway infrastructure for performance enhancement /d연구책임자: 이진욱  a의왕 :b韓國鐵道技術硏究院,c2007  a1책(쪽수복잡) :b삽화, 도표 ;c27 cm00aKRRI 연구 ;v07-9600a철도시스템 성능향상 기술개발  a참고문헌 수록  a권중부록: 열차속도에 따른 윤중감소율(단독파형) 등 8a선로(철도)[線路]0KSH19980349931 a이진욱0KAC2018G27414aut1 a가격불명