noun🔗Share하부 구조, 기초The supporting part of a structure (either physical or organizational; the foundation)."The school's substructures, including the foundation and supporting walls, were reinforced during the summer renovation. "여름 보수 공사 동안 학교의 하부 구조, 기초와 지지 벽을 포함하여 보강되었습니다.structureorganizationpartbuildingChat with AIVocabulary GamePractice Reading
noun🔗Share자갈, 궤도 받침The earth or gravel that the railway tracks are embedded in."After the heavy rains, engineers inspected the substructures of the railway line for any signs of erosion that could cause a derailment. "폭우 후, 엔지니어들은 탈선을 유발할 수 있는 침식의 징후가 있는지 철도 노선의 궤도 받침을 점검했습니다.materialgeologystructurebuildingtechnicalChat with AIVocabulary GamePractice Reading
