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IF(ISNULL(gy.engin_name),IF(ISNULL(zepj.engin_name),IF(ISNULL(zei.engin_name),IF(ISNULL(zed.engin_name),IF(ISNULL(zein.engin_name),'-',zein.engin_name),zed.engin_name),zei.engin_name),zepj.engin_name),gy.engin_name) AS engin_name,
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IF(ISNULL(gy.engin_name),IF(ISNULL(zepj.engin_name),IF(ISNULL(zei.engin_name),IF(ISNULL(zed.engin_name),IF(ISNULL(zein.engin_name),'-',zein.engin_name),zed.engin_name),zei.engin_name),zepj.engin_name),gy.engin_name) AS engin_name,
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IF(ISNULL(gy.engin_name),IF(ISNULL(zepj.engin_name),IF(ISNULL(zei.engin_name),IF(ISNULL(zed.engin_name),IF(ISNULL(zein.engin_name),'-','市政工程'),'危险工程'),'基建工程'),'顶管工程'),'工业工程') AS type
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IF(ISNULL(gy.engin_name),IF(ISNULL(zepj.engin_name),IF(ISNULL(zei.engin_name),IF(ISNULL(zed.engin_name),IF(ISNULL(zein.engin_name),'-','市政工程'),'危险工程'),'基建工程'),'顶管工程'),'工业工程') AS type
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