국내 원전 곳곳에서 격납고 콘크리트 벽 내 공극(빈 공간), 철판 부식 등 부실공사 흔적이 무더기로 발견된 탓이다.
This is because a large number of traces of poor construction, such as voids in the concrete walls of the hangar (empty space) and iron plate corrosion, were found in various places in domestic nuclear power plants.