Directrlx导航线
directadj.直接的;笔直的;坦白的v.对准;指挥;指示;命令
direct priming孔口起爆
direct a movie导演电影
direct support直接支持法直接支持法
direct calling直接呼叫法
direct reasons直接原因
directed graph有向图
direct leasing[经] 直接租赁
directing tube引丝管
directed audio声频定向
directed group有向群