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서해선 복선전철 건설사업 터널 중 가장 긴 터널은 어디인가요?
구분
설계관련
가장 긴 터널은 해안3터널로 약 4.7Km 입니다.
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이전글
요즘 SNS에서 여러 회사에서 기자단이나 서포터즈가 활발하게 활동하고 있는데, 철도시설공단에도 기자단이나 서포터즈가 있나요?
다음글
형식에 따른 승강장의 종류가 알고 싶습니다.