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단면8)H-H' 지층단면도(H-H') Key Map BH-22 BH-24 BH-25 BH-21 BH-23 BH-26 61.0m BH-26 BH-25 60.0m BH-21 16.1m BH-22 25.1m BH-23 37.0m BH-24