小手体验3D打印技术

array(1) { [39012]=> array(2) { [4]=> array(1) { [0]=> string(12) "青岛日报" } [2]=> array(3) { [0]=> string(8) "3D打印" [1]=> string(18) "鞍山二路小学" [2]=> string(6) "160724" } } }