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020지하철건설에신명을바칠각오를했지요(우명규)066누가맡기면죽기아니면살기로다해내야죠(김병린)088불편함을참아준시민들이지하철건설의또다른주인공이었죠(이수복)160땅속은토질에따라변수가많아요.무엇보다도경험이중요했죠(박계병)214지하구조물의깊이를확보하는것이중요해요(백영현)2562기지하철부터는네트워크장비가들어가죠(김대성)312이제지하철은자율주행으로해도문제가없습니다(배민호)3522기지하철은승강장폭이넓어요.골격이커졌죠(김효수)