hiyaint.你好！hiint.嗨(引人注意时的喊声；打招呼)hidden trouble control隐患整治hidden fault structure隐伏构造hidden safety troubles房屋安全隐患hidden danger to safety安全隐患Hilbert's tenth problemhidradenomyoepithelioma汗腺肌上皮瘤Hi - tech enterprises高新技术企业Hicriopteris laevissiman.光里白hidden line elimination隐线消除hidden-line algorithm隐线算法