threeleveladj.三级的threenum.三n.三；三个adj.三个的Three-dimensional utrasound三维超声three hundred and seventy six(=376) 三百七十六Three Keys Arc Cycloid Broach三键圆弧摆线拉刀three-tier client/server三层客户/服务系统three - phase bubble column三相鼓泡塔three-dimensional CAD model三维CAD模型three-strict administration“三严”管理three-dimensional stylolite三维缝合线three-piece paraffined cork三节上蜡软木塞, 香槟酒瓶塞three-dimensional autopilot三通道自动驾驶仪