[{"title":"( 2 个子文件 4.87MB ) 山河智能装备在数字矿山的应用PPT高清.rar","children":[{"title":"山河智能装备在数字矿山的应用","children":[{"title":"勾月readme.txt <span style='color:#111;'> 79B </span>","children":null,"spread":false},{"title":"山河智能装备在数字矿山的应用.pdf <span style='color:#111;'> 5.22MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]