00688nam a2200229 c 4500001001300000005001500013007000300028008004100031020002500072049002800097052001500125056001300140082001500153245005800168260003700226300004400263504002500307650004200332700005300374700001400427950001700441KMO20092634720211126113307ta090715s2009    tjkad         000   kor    a9788991479388g935400 lEM4511622lEM4511623c201a535.2b9-1  a535.22401a625.1422100a궤도 유지 관리 /d저자: 정찬묵,e어성욱  a대전 :b호미출판사,c2009  aviii, 271 p. :b삽화, 도표 ;c30 cm  a참고문헌: p. 213 8a궤도(철도)[軌道]0KSH19990140751 a정찬묵,g鄭燦默,d1961-0KAC2012164884aut1 a어성욱1 a가격불명