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부전~마산 낙동강 구간은 터널을 어떻게 뚫나요?
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부전~마산 복선전철 건설사업의 낙동강 구간은 쉴드-TBM공법을 적용하여 굴착 됩니다.
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민자사업방식 중 BTL은 무엇인가요?
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부전~마산 복선전철은 언제 개통하나요?