00988nam a2200265 c 4500001001500000005001500015008004100030040001900071041001300090049001700103052001600120056001300136082001400149100004800163245008000211260003600291300002500327500008400352502009900436653005800535700002500593950002100618963004000639965004300679KDM198709969  19941012175144871130s1987    hcka       MB 000   eng    a011001c0110010 aengbkor0 lWM117020fDM02a551.1bY94o  a451.1230 a551.12191 a유영준,g兪永濬,d1961-0KAC20183197410aOn the geophysical response for a pre-known subsurficial cavity/d兪永濬  a대전:b忠南大學校,c1987  a54p.:b삽도;c27cm  a한글서명 : 旣知의 地下空洞에 對한 地球物理探査 反應硏究0 a학위논문(석사) --b충남대학교 대학원:c지질학과 지구물리학전공,d1987  aGEOPHYSICALaRESPONSEaPREKNOWNaSUBSURFICIALaCAVITY1 aYu, Yong-Jun,d1961-1 a비매품b\2800  a지질학과a지구물리학전공  a지구물리학x지하공동탐지법